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High-Temperature Tribological Behavior of Nickel-Based Hardfacing Alloys
Tribology Transactions ( IF 2.1 ) Pub Date : 2021-05-12 , DOI: 10.1080/10402004.2021.1896059
Gopa Chakraborty 1 , Revati Rani 1, 2 , R. Ramaseshan 1, 2 , M. Arvinth Davinci 1, 2 , C. R. Das 1, 2 , Tom Mathews 1, 2 , S. K. Albert 1, 2
Affiliation  

Abstract

The friction and wear behavior of electrode rod nickel chromium (ER NiCr) nickel-based hardfacing alloys ER NiCr-A, ER NiCr-B, and ER NiCr-C deposited over austenitic stainless steel was studied against silicon carbide counter body by ball-on-disc tribotesting at 25 °C (1 bar pressure, 3 × 10−5 mbar vacuum) and at 550 °C (3 × 10−5 mbar vacuum) temperature. The wear tracks were examined using confocal microscope, profilometer and Raman Spectroscopy. The friction coefficient and wear rate of the deposits are correlated with the microstructure of the alloy. Wear rate of NiCr-B is found to be minimum both at ambient and elevated temperatures and can be considered as the best choice among the three alloys studied for hardfacing applications.



中文翻译:

镍基堆焊合金的高温摩擦学行为

摘要

电极棒镍铬 (ER NiCr) 镍基堆焊合金 ER NiCr-A、ER NiCr-B 和 ER NiCr-C 沉积在奥氏体不锈钢上的摩擦磨损行为研究-在 25°C(1 巴压力,3 × 10 -5毫巴真空)和 550°C(3 × 10 -5毫巴真空)温度下的圆盘摩擦测试。使用共聚焦显微镜、轮廓仪和拉曼光谱检查磨损轨迹。沉积物的摩擦系数和磨损率与合金的微观结构相关。发现 NiCr-B 的磨损率在环境温度和高温下都是最低的,可以被认为是为表面硬化应用研究的三种合金中的最佳选择。

更新日期:2021-07-14
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