Microstructure Evolution Simulation of Laser Cladding Process Based on CA-FD Model,Crystal Research and Technology

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Microstructure Evolution Simulation of Laser Cladding Process Based on CA-FD Model
Crystal Research and Technology ( IF 1.5 ) Pub Date : 2021-09-13 , DOI: 10.1002/crat.202100050
Min Zhang ₁ , Yufei Guo ₁ , Zhao Guo ₁ , Lisheng Zhang ₁ , Gang Wang ₁ , Baoling Li ₁

Affiliation

In this paper, a cellular automata-finite difference (CA-FD) model is established to simulate the microstructure evolution in the laser cladding process. The microtemperature field, crystal nucleation, and growth in the solidification process of Inconel 625 alloy cladding layer are researched, and the effects of different cladding process parameters on crystal growth are studied. The CA-FD model is improved based on the temperature and sequence of phase formation in the solidification process of the cladding layer, so as to realize the simulation study of the phase transformation process in the Inconel 625 alloy cladding layer. Finally, the laser cladding experiment of Inconel 625 alloy is carried out, and the simulation results are verified.

中文翻译：

基于CA-FD模型的激光熔覆过程显微组织演化模拟

在本文中，建立元胞自动机-有限差分（CA-FD）模型来模拟激光熔覆过程中的微观结构演变。研究了Inconel 625合金熔覆层凝固过程中的微温场、晶体形核和生长，研究了不同熔覆工艺参数对晶体生长的影响。基于熔覆层凝固过程中的相形成温度和相序对CA-FD模型进行改进，实现对Inconel 625合金熔覆层相变过程的模拟研究。最后，对Inconel 625合金进行了激光熔覆实验，并对仿真结果进行了验证。

更新日期：2021-10-09

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