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Design of Electromagnetic TP-1 Test Equipment to Study the Change in Aluminium Macrostructure Under External Field
Transactions of the Indian Institute of Metals ( IF 1.6 ) Pub Date : 2021-05-24 , DOI: 10.1007/s12666-021-02269-8
Arjun Kundu , Deepak Patel , Prasenjit Biswas , Shikhar Ranjan , Archana Mallik , Sanjeev Das

In the present study, a unique method has been designed and developed by integrating Test Procedure 1 (TP-1) Alcan test equipment with electromagnetic stirring (EMS). The investigation is mainly focused on the design of equipment, manufacturing and controlling the experimental parameters to manipulate the structure of the Al castings. The design allows aluminium melt to be solidified in TP-1 mould under directional and a combination of directional with forced convection solidification mechanism. The effect of electromagnetic stirring current or induced voltage on macrostructural morphology of pure aluminium has been reported. It was observed that with the increase in current/voltage, the columnar grains were replaced by the fine and equiaxed grains due to the induced force convection created by EMS. Temperature gradients were measured for each solidifying melt in TP1 mould. The variation in temperature gradient with respect to time duration for different values of current (6A, 9A and 11A) was investigated and it was correlated to change in macrostructure of the casting.



中文翻译:

电磁TP-1测试设备的设计,用于研究外场下铝宏观结构的变化

在本研究中,通过将测试程序1(TP-1)Alcan测试设备与电磁搅拌(EMS)集成在一起,设计和开发了一种独特的方法。研究主要集中在设备设计,制造和控制实验参数以操纵Al铸件的结构上。该设计允许将铝熔体在TP-1模具中进行定向固化,并结合定向和强制对流固化机制进行固化。已经报道了电磁搅拌电流或感应电压对纯铝的宏观组织形态的影响。观察到随着电流/电压的增加,由于EMS产生的感应力对流,柱状晶粒被细小的等轴晶粒代替。测量TP1模具中每个凝固熔体的温度梯度。研究了不同电流值(6A,9A和11A)的温度梯度相对于持续时间的变化,并将其与铸件的宏观结构变化相关联。

更新日期:2021-05-24
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