Solidification of Ni-Ti shape memory alloy: Modeling and simulation

被引：0
|
作者：
Carvalho L.C. [1 ]
De Lima A.G.B. [1 ]
Calazans Duarte R.N. [1 ]
Moreira G. [1 ]
De Brito M.K.T. [1 ]
Queiroz R.A. [1 ]
机构：
[1] Department of Mechanical Engineering, Federal University of Campina Grande, Campina Grande, Paraíba
来源：
Defect and Diffusion Forum | 2019年 / 391卷
关键词：
Finite volume Method; Ni-Ti; Shape Memory Alloy; Simulation; Solidification;
D O I：
10.4028/www.scientific.net/DDF.391.136
中图分类号：
学科分类号：
摘要：
The shape memory alloys have been used in the most different sectors such as aerospace, automotive and biomedical due to their ability to return to their original shape when subjected to high temperatures. Modeling and numerical simulation have become great allies in engineering due to the possibility of solving complex problems, especially in cases where experimental research is limited. In the present study, a two-dimensional mathematical model was developed to describe the solidification process of a Ni-Ti alloy in a stainless-steel metal mold sand-confined. It was considered the flow of a refrigerant (air) in the top of the mold. The energy conservation equation, including the phase change term, was discretized using finite volume method (FVM) and a fully implicit formulation. Results of the Ni-Ti alloy and mold temperature distributions over time are presented and analyzed. © 2019 Trans Tech Publications, Switzerland
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页码：136 / 141
页数：5
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