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Digitally controlled sigma-delta modulated direct matrix converter for high frequency AC-AC Conversion Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Irfan Ahmad Khan; Anshul Agarwal
In recent times, several digitally controlled modulation techniques (MTs) have envisioned for generating pulse width modulation (PWM) trigger pulses to improve the quality of the output (o/p) produced [in terms of reduced total harmonic distortion (THD)], from direct matrix converter (DMC). The development of a digital controller for single-phase DMC, producing o/p frequencies higher than the input
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An optimized MAC based architecture for adaptive digital filter Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Britto Pari James; Vaithiyanathan Dhandapani; Karuthapandian Mariammal
Filter design in signal processing field plays a vital role in achieving low power dissipation, which is essential for portable gadgets. This paper proposes an effective flexible FIR filter structure, which is adaptive and utilizes multiply–accumulate (MAC) core. Most common algorithm for filter coefficient optimization includes least mean square (LMS) and recursive least square (RLS). Though the performance
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Simulation of the process variation in negative capacitance virtual-source carbon nanotube FET devices and circuits Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Bharathi Raj Muthu; Ewins Pon Pushpa Solomon; Vaithiyanathan Dhandapani
We have reported the impact of process variation of virtual- source carbon nanotube field-effect transistor (VS-CNFET) device externally connected to the epitaxial ferroelectric (FE) capacitor through the spectre parametric simulation. We have found that the FE materials with high remnant polarization produces better transfer characteristics and suppressed short channel effects (SCE). The increase
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An adaptive denoising approach to powerline interference reduction in ECG recording Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Manoharan Suresh Kumar; Ganapathy Krishnamoorthy; Dhandapani Vaithiyanathan
The objective of this paper is to develop an adaptive denoising algorithm for the reduction of powerline interference (PLI) in electrocardiogram (ECG) recording. The problem of mode mixing and inability to deal with non-stationary characteristics have the major drawbacks posed by existing PLI removal techniques. The technique used in the proposed work has been combined with the concept of synchrosqueezing
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Optimization using genetic algorithm of tribological behaviour of WC tool material Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Ramakant Rana; Qasim Murtaza; Ravinderjit Singh Walia
In this investigation we have used a heuristic approach to optimize the process parameters in terms of tool wear rate. We have used the L8 orthogonal array design of experiments with three input parameters set at two levels. We have carried out the experimentation on two different processes viz. dry sliding and dry turning processes. An attempt has been made to achieve and validate the results obtained
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Productivity and welfare effects of agricultural technologies: A study of maize producing households in Ethiopia using PSM approach Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Aynalem Shita; Nand Kumar; Seema Singh
The purpose of this study is to examine the effect of fertilizer and improved maize varieties of seeds on maize productivity and welfare of maize producing households based on survey data that has been obtained from 337 households in Ethiopia. Results have been estimated by using propensity score matching method. The study indicates that adoption of fertilizer and improved maize varieties increases
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Design and development of an additive manufactured force transducer Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Harshvardhan Choudhary; Dhandapani Vaithiyanathan; Ajay Pratap Singh; Ankita Jaisingh Sheoran; Harish Kumar
This paper discusses the design and development of an additive manufactured force transducer for force measurement applications. The force transducer is of square ring shape and dimensions have been evaluated in accordance to available literature. Fused filament fabrication technique has been adopted for fabrication of the force transducer and strain gauges have been applied at defined location in
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Bandgap current reference using widlar current source Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Bhawna Aggarwal; Yogita Arora; Jasdeep Kaur Dhona
This paper has proposed a temperature insensitive current reference (CR) using Widlar current source. This CR has overwhelmed the direct relation of current to temperature present in Widlar current source. To obtain temperature insensitivity the proposed CR has been combined the complementary temperature behavior of current across MOSFET and BJT. Eldospice has supported the simulations of the proposed
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Design and investigation of Hybrid 2D codes for optical CDMA systems Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Manisha Bharti
Hybrid 2D codes have been designed, implemented and investigated for optical code division multiple access (OCDMA) system. For analysis, the codes that have been chosen in this manuscript are algebraically constructed codes, prime codes, hybrid W/T codes and optical orthogonal codes (OOCs). To investigate the performance of codes in detail, on-off keying method has been employed on all codes and combinatorial
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Influence of titanium carbide and activated carbon particles on the wear, mechanical properties and microstructure study of A413 metal matrix composite Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Hireguntanur Rajanna Manohara; Nagaraja Thipperudrappa; Basava; Sridhara Thippeshappa
Present industries show an increasing demand in low-cost reinforcement and light weight composites. As compared to unreinforced alloys, metal matrix composites (MMCs) have possessed better properties including good thermal conductivity, wear resistance and high strength. The inexpensive low-density reinforcement of several discontinuous dispersions is available in huge quantities of agricultural waste
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Analysis of key performance indicators for sustainable manufacturing in sugar industry using analytical hierarchy process Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Hanamantagouda Rangangouda Patil; Channappa Muttappa Javalagi
Industries around the globe are facing challenges with respect the implementation of sustainable manufacturing in their respective firms. Sugar industries are pointed as a major consumer of natural raw materials, energy, and pollutants, resulting in a major concern, which demands an immediate attention as it contributes to global warming at large. Hence, assessing sustainability in this industry has
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Computational investigation of solar updraft tower for power generation in sultanate of Oman Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Afzal Husain; Mohammad Zunaid; Mohammed AL Brashdi; Fahad Al Maqbali; Emad Al-Jabri; Abdulmonem Al-Mahrizi
The current study is aimed at harnessing solar power through solar updraft tower (SUT) and explored the local environmental factors conducive to SUT installation. The SUT collects solar insolation to raise the air velocity, which is then allowed to pass through a ducted turbine. An alternator is installed with the air turbine to generate electricity. The study presents a performance analysis of SUT
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Diagnosis of bearing faults using multi fusion signal processing techniques and mutual information Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 V. Dave; S. Singh; V. Vakharia
Bearing is a widely used rotating component in most of the industrial machinery. Failure of bearings can incur substantial losses in the industries. During operation, to prohibit failure in bearing, it becomes necessary to identify faults that occur in bearings. In the present work, bearing vibration signals have been taken for the detection of faults in bearings. In the next step, features obtained
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Mechanical and tribological properties of aluminium incorporated with amorphous Ni60Nb40 particles Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Subramanian Jayalakshmi; Ramachandra Arvind Singh; Sanjay Mohan; Xizhang Chen; Manoj Gupta
In this paper, development and characterization of pure aluminium (Al) reinforced with metallic amorphous Ni60Nb40 particles has been presented. Ni60Nb40 amorphous alloy reinforcement powder has been incorporated within Al-metal powder to produce Al-Ni60Nb40 composite. The composite has been sintered using bidirectional microwave sintering technique. Structure, indentation/tensile/compressive behaviour
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Development of a NIOSH based software tool for musculoskeletal disorders Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Sanjay Mohan; Ankush Anand; Mir Irfan Ul Haq; Ankush Raina; Rajiv Kumar; Mohd Kamal
Musculoskeletal disorders amongst workers performing manual lifting tasks have become a major challenge now a days. Such problems hamper productivity of any concern to a greater extent. Industrial experts and researchers have been devising ways and means to reduce such disorders and the National Institute of Occupational Safety and Health (NIOSH) agency lifting equation is one amongst such tools. NIOSH
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An experimental and simulation validation of residual stress measurement for manufacturing of friction stir processing tool Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Ravi Butola; Qasim Murtaza; Ranganath Muttana Singari
Residual stresses have been considered to be an important parameter when friction stir processing (FSP) tool is to be manufactured. FSP has often been used for surface modification and fabrication of surface composites. Involuntary residual stress in a designed tool may cause it to fail before due time. Because of this, the knowledge about the stresses on the tool probe after its machining has been
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The natural fibre and nano talc based hybrid composite of polypropylene: Thermal performance Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Gurdevinder Singh Bajwa; Ranganath Muttanna Singari; Radhey Shyam Mishra
Hybrid composite are the latest development in the field of engineering materials and due to environmental concern we are employing natural fibre in place of synthetic fibres to save energy and environment as these hybrid composite are biodegradable. Reinforcement of nano talc in hybrid composite also enhances the properties of hybrid composite. Processing of hybrid composite is easy and economical
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Optimization of process variables in electric discharge machining (EDM) using Taguchi methodology Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Sudhir Kumar; Sanjoy Kumar Ghoshal; Pawan Kumar Arora
The present study engrossed with the functional relationship between the input and output parameters of the electric discharge machining (EDM). Four controllable machining parameters, viz. gap voltage (A), current (Ip), duty cycle (C) and pulse on time (Ton) have been chosen to ascertain the electrode wear rate (EWR) and surface roughness (SR) of AISI 420 material with copper electrode. Through Taguchi
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Buckling load for telescopic cylinder using successive approximation method Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Sumit Kumar Gupta; Jatin Prakash; Pavan Kumar Kankar
In this manuscript, a new way of determining the buckling load of the two-stage both end-hinged, single acting hydraulic cylinder has been engrossed using successive approximation method. The method has been extended from single stage hydraulic cylinder to the two-stage hydraulic cylinder mounted with pin support at both ends. This method includes a few numbers of iterations required in order to achieve
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Investigation of surface roughness for EN-31 by REDM with graphite electrode Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-11-24 Deepak; Vipin
Machining of EN-31 is supposed to be very difficult by conventional machining methods. A rotational electrical discharge machine (REDM) has been developed with concentration of abrasive particles in oil. Investigations have been carried out for machining EN-31 material by REDM with graphite electrodes (Ge). Analysis of REDM process parameter has made to carry out on EN-31 for Surface Roughness (Ra)
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A band-selective CMOS low-noise amplifier with current reuse gm boosting technique for 3-5 GHz UWB receivers Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Jaemin Shim; Jinwoopark; Jichai Jeong
The authors have proposed a 3-5 GHz ultra-wideband (UWB) low power and low noise amplifier (LNA) with the TSMC 0.18 μm RF CMOS process, which uses a novel dual input matching network for wideband matching. We have used a current-reuse gm-boosted common-gate topology and shunt-shunt feedback common-source output buffer to improve gain and noise figure with low power dissipation. The proposed dual input
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A probabilistic model of acoustic emissions generated during compression test of cementitious materials for crack mode classification Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Remalli Vidya Sagar
This article presents a study on crack mode classification in cementitious materials under uniaxial compression using gaussian mixture modeling (GMM) of acoustic emissions approach. To implement a retrofitting method to an in-service concrete structure, a prior knowledge about the type of crack developed in the concrete structure is useful. Because, occurrence of AE events during fracture process in
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Effect of red mud proportion on the strength and microstructure of ferrosialate based geopolymer mortar Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Bharath Simha Reddy Yeddula; Karthiyaini Somasundaram
This paper studies the effect of various red mud proportions on the strength and microstructural changes in the ferrosialate geopolymer mortar. The optimum percentage of red mud (RM) has to be found with respect to the molarity of Sodium hydroxide (NaOH) to maintain the suitable alkalinity of the mixture for maximum strength gain. This percentage has been found to be between 20 and 30% RM proportions
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Microstructure and mechanical properties of directionally solidified alloys of Mg-9Zn-2Y Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Houpu Wu; Lianwei Yang; Xiaoping Lin; Jie Liu; Tao Chai; Yun Dong
Samples of directionally solidified Mg-9Zn-2Y alloys have been obtained using vacuum induced directional solidification equipment. The metallographic structures and mechanical properties at room and high temperatures of the directionally solidified alloys have been investigated and compared with those of conventional casting alloys. The structures have consisted of columnar crystals with a specific
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Prediction of tribological characteristics of powder metallurgy Ti and W added low alloy steels using artificial neural network Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Thanjavur Krishnamoorthy Kandavel; Thangaiyan Ashok Kumar; Emaya Varamban
In the present research work, the effects of Titanium (Ti) and Tungsten (W) addition on tribological behavior of powder metallurgy (P/M) Fe-1%C steel have been investigated. The test specimens of plain carbon steel and 1%Ti, 1%W and 1%Ti+1%W added plain carbon steels were used to conduct the wear tests and wear behavior analyses. The optical and SEM images of wear tracks and microstructures of the
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Nanohardness and wear behaviour of AISI 1040 steel coated with Ti-6Al-4V 4B4C by magnetron sputtering Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Malkiya Rasalin Prince Russel; Selvakumar Natarajan
The Ti-6Al-4V-4B4C composite coatings have been deposited on AISI 1040 steel substrates by magnetron sputtering. The composition, structure, and topography of the coated surface have been explained by SEM, XRD, FT-IR and AFM. The constant coating thicknesses of 80 nm and 115 nm obtained for 0.5 h and 1h coating time, respectively. Wear tests have been conducted on the coated AISI 1040 steel substrates
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Effect of rare earth on microstructure and wear behaviour of Ni based microwave clad Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Kanwarjeet Singh; Satpal Sharma
In the present investigation microwave energy has been utilized to develop wear resistant Ni-based clad without Nd2O3 (unmodified coating) and with addition of Nd2O3 (modified coatings) in varying wt. % of 1-3. The clads have been developed using domestic microwave oven at frequency of 2.45 GHz and power 900 W for duration of 360 s. The unmodified and modified clads have been characterized in terms
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Application of 2XXX and 7XXX series alloys as input material for the new casting-forging hybrid process Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Michal Szucki; Anna Dziubinska; Grzegorz Winiarski; Krzysztof Majerski; Krzysztof Drozdowski; Marcin Gorny; Janusz Buras
The aim of the work has been to analyze the aluminum alloys for plastic working from the point of view of their usefulness in the new hybrid manufacturing process which includes gravity casting and forging. The tests have been carried out on popular aluminum alloys from the 2xxx and 7xxx series: 2017A, 2024, 7022, and 7075, respectively. The authors have focused on the problem of using these materials
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Pulse electrodeposition of Ni/nano-SiC composite coatings: Effect of waveform, duty cycle and current density Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Gholamreza Heidari; Mohammad Mosavie-Khoei
In this study, nano-sized SiC particles have been codeposited with nickel using an additive free sulfamate bath under pulsed direct current (PDC) and direct current (DC). In order to find the effect of current density, duty cycle (D.C.) and waveform on coating, coatings have been studied in terms of microstructure, microhardness and SiC-codeposition. The scanning electron microscope results shown that
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Environment effect on microstructure properties of gas tungsten arc welding for titanium and aluminium alloy joints Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Nandagopal Kaliappan; Kailasanathan Chidambarakuttalam
Many engineering applications are in need of high strength and low weight alloys; titanium and aluminium alloys are used in several engineering applications to reduce weight. In this study, investigate effect of environment conditions on microstructure properties of gas tungsten arc welded assisted with brazing of titanium alloy Ti-6Al-4v and aluminium alloy Al7075 has been carried out. Alloys are
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Small delamination detection in carbon fibre reinforced polymer composite beam by NDT and vibration analysis Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Smaranika Nayak; Swetansu Pattnaik; Isham Panigrahi; Rameshkumar Nayak; Sambitkumar Parida
Fibre reinforced polymer (FRP) composites have been prone to damages such as delamination, debonding, matrix cracking and fibre breakage. In this paper, detailed study has been carried out on determining the presence of small delamination in sub layers of carbon fibre composite beam using various non-destructive tests (NDT) and vibration signal analysis. We have concluded that ultrasonic and X-Ray
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Effects of adding aluminium in zinc bath on Co-Zn interfacial reaction Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Yongxiong Liu; Fucheng Yin; Zhi Li; Zhu Chen; Manxiu Zhao; Zhaohui Long
Effects of adding 0.3 wt.% Al in Zn bath on the microstructure and reaction kinetics of intermetallic compounds have been studied using Co/Zn and Co/Zn-Al solid/liquid diffusion couples by means of scanning electron microscopy (SEM) and wave dispersive spectrometry (WDS). The intermetallic compounds in the Co-Zn interface have been identified and the diffusion process of Al in zinc bath has been analyzed
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Average austenite grain size evolution simulation during multi-pass shape metal hot rolling process Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 He Qingqiang; Zhu Han; Liu Jianguo; Chai Wanli; Geng Chunli; Zhao Junyou
Constitutive equations describing the flow stress of Q235 steel undergoing hot plastic deformation have been developed by integrating the microstructure models and exponential flow stress models presented in literatures, in which the microstructure models parameters have been re-determined based on the related experiments carried out on cylindrical specimens of the Q235 steel. Therefore, the integrated
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Enhancement of interfacial adhesion in UHMWPE fiber/HDPE composites by electrophoretic deposition of graphene oxide on UHMWPE fibers Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Jiang Zhuoda
In contrast to the conventional methods of improving interface and performances of UHMWPE fiber composites through fibre surface modification, this paper has reported a novel approach to deposit graphene oxide (GO) to increase the fiber/matrix interfacial shear strength (IFSS) of ultra high molecular weight polyethylene fibers (UHMWPE fiber) reinforced high density polyethylene (HDPE) composites. To
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Optimization of turning parameters of titanium chrome-molybdenum (Ti-Cr-Mo) alloy using taguchi method Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Manpreet Singh; Gagandeep Singh; Arvind Jayant
The traditional turning process has used in this study to develop a mathematical model from experimental data to predict the surface roughness of titanium chrome-molybdenum (Ti-Cr-Mo) alloy when the workpiece is machined with cutting parameters i.e. spindle rotational speed, feed rate and depth of cut. In order to determine the contribution of the cutting parameters, the analysis of variance (ANOVA)
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Process optimization and comparative analysis of EDM and EDD process in machining Al6063/10% SiC metal matrix composites Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Sabindra Kachhap; Abhishek Singh; Kishore Debnath
In this work, a comparative investigation of electric discharge machining (EDM) and electric discharge drilling (EDD) has been presented to evaluate the performance measures for machining blind holes in Al6063/10% SiC metal matrix composites (MMCs). The work has been conducted with an aim of optimizing the material removal rate (MRR), tool wear rate (TWR), and surface roughness (SR). The input parameters
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Experimental investigation of corrosion effect on bending fatigue of the wire ropes Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Ozlem Salman; Cevat Erdem Imrak
Wire rope has examined for the total fatigue life prediction methodologies based on the initial condition of the wire rope. The great majority of applications, e.g. cranes, lifts, and winches have been subjected the rope to bending fatigue. There are several parameters which effects on bending fatigue lifetime such as tensile load, sheave diameter, rope composition. Apart from that, according to application
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Interfacial improvement of carbon fiber/polyoxymethylene composites by depositing functionalized carbon nanotubes on the fibers Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Quping Zhu
CF/POM/CNT ternary composites have been prepared by melt blending method with carbon nanotubes (CNT) as modifier, maleic anhydride (MAH) as interfacial compatibilizer and polyoxymethylene (POM) as matrix. The mechanical properties of CNT on CF/POM have been studied by temperature-controlled tensile, and scanning electron microscopy analysis. The results show that the interface properties of CF/ POM/CNT
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Exploring grindability of Ti-6Al-4V using an indigenously developed environment friendly micro pump based cooling system Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Sirsendu Mahata; Manish Mukhopadhyay; Ayan Banerjee; Arnab Kundu; Bijoy Mandal; Santanu Das
Titanium alloys are ideally suited for different manufacturing applications because of their unique combination of high specific strength over a wide range of temperature, in addition to excellent corrosion resistance properties. However, grinding of titanium alloys is quite difficult due to their high hardness at elevated temperature, low thermal conductivity and elastic modulus. Application of cutting
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Friction stir welding of copper: Processing and multi-objective optimization Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Gurmeet Singh; Ankit Thakur; Satpal Singh; Neeraj Sharma
Non-ferrous metals are difficult to weld as compared to the ferrous metals. Copper is one of the non-ferrous metals using worldwide in different manufacturing and other metal processing industries. This paper focuses on the processing of copper under friction stir welding (FSW) and the study of mechanical properties of friction stir welded (FSWed) copper joints. Different parameters of FSW have been
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Barkhausen noise analysis of friction stir processed steel plate Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Mohd Zaheer Khan Yusufzai; Avinash Ravi Raja; Sanjay Kumar Gupta; Meghanshu Vashista
This work investigates the variation in material properties of steel upon friction stir processing through its magnetic response. The steel plate of grade IS 2062 having a thickness of 3 mm have been friction stir processed (FSPed) using a tool of tungsten carbide with a 15 mm shoulder diameter along with 3 mm pin diameter with traverse of 150 mm/minute and a 800 RPM revolving speed. Magnetic response
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Experimental study on the influence of copper oxide nano-fluid on surface integrity in turning of AISI O1 steel Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Mohammad Reza Shabgard; Ahad Gholipoor; Sajad Lotf Javid
Turning operation is one of the most used operations at various industries and obtaining desired machined surface quality is one of the important concerns of researchers. In this investigation the effects of using copper oxide nano-fluid as compared with conventional fluid (soluble oil) as coolant and lubricant on surface integrity of machined surface of heat treated cold work tool steel (AISI O1)
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Study on microstructure and mechanical property of Ti-6Al-4V brazed joint with low temperature filler metal Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Santhebachahalli Venkataramu Anil Kumar; Rangappan Gandhinathan
This study investigates the microstructure and mechanical properties of Ti-6Al-4V brazed joints which has been performed in a vacuum furnace using BAg-22 (Ag–16Cu–23Zn–4.5Ni-7.5Mn, wt. %) as filler metal. The microstructure of the brazed joints has been analyzed by means of optical microscope, scanning electron microscope (SEM) and X-Ray diffraction (XRD). In addition, the mechanical strengths of the
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Sustainable mortar mix using recycled fines obtained from construction and demolition waste Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Nancy Soni; Dharmendra Kumar Shukla
Rivers are over exploited for natural sand extraction and production of cement has triggered global warming. For sustainable development a study has been conducted to use construction and demolition waste (CD-W) in cement-sand mortar. In the present study, crushed CD-W in the form of recycled concrete fine aggregate (RCFA) and recycled concrete powder (RCP) has been planned to be used in cement-sand
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Corrosion behaviour of dissimilar TIG welded austenitic stainless steel AISI 304 and martensitic stainless steel AISI 420 Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Abhishek Ghosh; Pradip Kumar Pal
Welded joints of dissimilar metals are often required in nuclear and chemical industries. Among the various types of material combinations, welded joint of austenitic stainless steel and martensitic stainless steel is one good option. Due to differences in mechanical, metallurgical and corrosion properties between the two dissimilar materials, selections of suitable welding parameters, filler materials
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Finite element modeling of girth welded pipe with multiple defects Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Hsu Yang Shang; Ivan Ferreira da Silva
Due to the expansion of the pipeline network in the transportation of petroleum and its derivatives, it has been essential to develop studies to evaluate and guarantee the safety condition, as well as the reliability of such facilities. Welded pipelines have been widely used, and they are susceptible to corrosion. Since the heating at the welded point may leads to structural and compositional modifications
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Processing parameters in the ball milling of niobium hydride: An optimization approach Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Gilbert Silva; Dalton Garcia Borges de Souza; Lucas Catalani Gabriel; Geovani Rodrigues; Carlos Eduardo Sanches da Silva
Due to its particular properties, niobium has been widely used in the industry. In order to produce niobium-base parts, its powder can be obtained through a powder metallurgy’s method called ball milling. In this article, the ball milling parameters, in the production of niobium’s powder,have been optimized using the Taguchi’s method in order to obtain a high yield in the process, considering a particle
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Optimal selection of process parameters to reduce vibration during end milling of Al 356/SiC metal matrix composite Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Sellamani Rajeswari; Perumal Subramaniyan Sivasakthivel
Machining performances are strongly influenced by vibration which occurs due to the dynamic nature of machine tool structures. A self excited vibration commonly known as chatter is frequent debacle occurs during milling operations which cause worsening outcomes such as excessive tool wear, poor surface finish and reduced tool life. In this paper an effort has been tried to optimize the machining and
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Experimental study on developed electrochemical micro machining of hybrid MMC Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Charanjit Singh Kalra; Vinod Kumar; Alakesh Manna
An electrochemical micro machining (ECMM) set-up has been developed and utilized for experiments. The effects of ECMM parameters on material removal rate and electrode wear rate have been analyzed during micro drilling of hybrid Al/(Al2O3p+SiCp+Cp)-MMC with tungsten electrode of diameter 298 µm. The machined surface texture, and decomposition of metallic compounds deposited on the workpiece as well
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Study on dry-sliding wear (DSW) of uncoated IN800 super alloy and sol-gel based dip coated IN800 substrate Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Dipak Kumar; Kailash Narayan Pandey
In the present paper, sliding wear characteristics of seven weight% yttria stabilized zirconia (7YSZ) sol-gel deposited on to air plasma sprayed CoNiCrAlY bond-coated Inconel 800 superalloy has been studied. For this, sliding wear tests have performed on pin-on-disc friction and wear test rig by varying experimental parameters applied load, sliding velocity, disc speed and temperature as per L16 orthogonal
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Deposition of TiC-Cu composite coating on AISI 304 stainless steel by EDC process using powder compact tool electrode Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Tijo D; Shilpi Kumari; Manoj Masanta
In this work, powder compact tool electrode prepared with TiC-Cu powder mixture has been used to deposit TiC coating on AISI 304 stainless steel by electro discharge coating (EDC) process. Effects of peak current during EDC process have been analysed for the deposition rate, surface characteristics and micro-hardness value of the coating. Morphology of the deposited coating layers has been studied
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Wear properties and synthesis of CrFeNiMoTi high entropy alloy coatings produced by TIG process Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Serkan Islak; Özkan Eski; Vahdettin Koç; Cihan Özorak
The aim of this study is to investigate wear and microstructure properties of CrFeNiMoTi high entropy alloy coating produced by using tungsten inert gas (TIG) process on the medium carbon steel. The coatings have been compared in terms of their phase composition, microstructure, and hardness. Phase compound and microstructure of coating layers have been examined by using X-ray diffractometer (XRD)
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Neural network modeling of forces in drilling of glass/epoxy composites filled with agro-based waste materials Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Vikas Dhawan; Kishore Debnath; Inderdeep Singh; Sehijpal Singh
In this paper, the drilling behavior of a new class of composite materials has been experimentally investigated. The composite laminates have been manufactured using glass fibers, epoxy resin, and filler materials. The abundantly available agro-based waste materials (coconut coir, rice husk, and wheat husk) have been used as filler materials. The drilling experiments have been performed at several
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Modelling and optimization of injection molding process for PBT/PET parts using modified particle swarm algorithm Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Sagar Kumar; Amit Kumar Singh; Vimal Kumar Pathak
In the present study, a systematic methodology has been presented to determine optimal injection molding conditions for minimizing warpage and shrinkage in a thin wall relay part using modified particle swarm algorithm (MPSO). Polybutylene terephthalate (PBT) and polyethylene terephthalate (PET) have been injected in thin wall relay component under different processing parameters: melt temperature
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Interface improvement of carbon fiber/PMMA resin composites by fiber surface coating Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Zhou Fengxu
The surface of the carbon fiber (CF) has been pretreated by liquid phase deposition of microcrystalline cellulose (MCC). X-ray photoelectron spectroscopy, atomic force microscopy (AFM) and scanning electron microscopy (SEM) have been used to analyze and characterize the surface morphology and structure of carbon fiber, and the shear strength test and SEM observation of single fiber interface have been
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Effect of mechanical properties on banana macro particle reinforced epoxy composites Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-09-23 Chinnapalanichamy Jayaseelan; Palani Padmanabhan; Ayyanar Athijayamani; Kalimuthu Ramanathan
Mechanical properties of banana macro particles reinforced epoxy composites have been evaluated in this study. Composites have been prepared with 25, 30, and 35 wt % of banana macro particles using compression moulding machine. Mechanical properties (tensile, flexural, and impact) of banana macro particles reinforced epoxy composites have been obtained as a function of content of banana macro particles
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Multifactor optimization for development of hybrid aluminium matrix composites Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-08-03 Swarndeep Singh; Rupinder Singh; Simranpreet Singh Gill
The present study aims to multi factor optimization for preparation of aluminum matrix composites (AMC) by reinforcement of SiC/ Al2O3/ Al2O3+ SiC particles having dual particle size (DPS) and triplicate particle size (TPS) based upon signal to noise (S/N) ratio analysis. In this work the amalgamation of fused deposition modelling (FDM) and vacuum moulding (V-process) assisted stir casting (SC) has
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Effect of material and machining features in electric discharge machining of 6061Al/rock dust composites Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-08-03 Kumarasamy Soorya Prakash; Pudhupalayam Muthukutti Gopal; Raghavan Nair Rahul
The current research investigates the effect of electric discharge machining (EDM) and material parameters on material removal rate (MRR), tool wear rate (TWR) and surface roughness (Ra) while machining the novel aluminium rock dust composite. Experiments have been performed in Vidyunt EM 150 EDM machine by considering parameters namely discharge current, pulse ON time, pulse OFF time, reinforcement
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Machinability analysis and characterization of aluminium hybrid metal matrix composite using WEDM Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-08-03 Venkatesan Subbaian; Kingston Barnabas Jacob; Ravindran Durairaj
The aluminium composites are being used for various number of applications like automobiles, aerospace, marine, construction, etc. Manufacturing industries keenly focus on improving their product quality by means of strength with reduction in cost. The hybrid metal matrix composites paved way for achieving those objectives through reinforcement of existing traditional materials. This work is also a
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Effect of Nano-Silica on the Physical, Mechanical and Thermal Properties of the Natural Rubber Latex Modified Concrete Indian J. Eng. Mater. Sci. (IF 0.521) Pub Date : 2020-08-03 Marina Leyan Varghese; Richu John Babu; Suraj R Menon; Reny Rajan; Vinayak Venu Gopal; Ancheli Siby Jacob; Vinny Ann Titus; Mini Mathew; Soney Chathukulam George
The preparation and properties of latex modified concrete (LMC), nano silica modified concrete (nSMC) and silica-latex modified concrete (SLMC) have been investigated in this study. Properties like compressive strength, tensile strength, flexural strength, thermal characteristics and water absorption have been evaluated. The 7-day compressive strength has increased 37% (30.15 N/mm2) after the inclusion