Numerical research on the effects of grain structure on lead concentration distribution in Sn-3 wt.%Pb benchmark experiment using two-phase solidification model coupled with cellular automaton method

被引：0

作者：

Ren, Fengli ^{[1
]}

Cao, Tianxin ^{[2
]}

Fu, Yufeng ^{[1
]}

Ge, Honghao ^{[3
]}

Xu, Xiaofeng ^{[1
]}

机构：

[1] Zhejiang A&F Univ, Coll Opt Mech & Elect Engn, Hangzhou 311300, Peoples R China

[2] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Peoples R China

[3] Zhejiang Univ Technol, Coll Mech Engn, Hangzhou 310014, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2024年 / 229卷

基金：

中国国家自然科学基金;

关键词：

Macrosegregation; Grain structure; Cellular automaton method; Channel segregation; SIMULATION; ALLOY; MACROSEGREGATION; SEGREGATIONS;

D O I：

10.1016/j.ijheatmasstransfer.2024.125718

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A novel two-phase solidification model coupled with the cellular automaton method is developed to investigate the effects of grain structure on lead concentration distribution in Sn-3 wt.%Pb benchmark experiment. In this model, the grain structure, mass and solute transport, thermal and solutal buoyancy, etc., are taken into account. The simulation results are comprehensively compared with the experimental results in terms of the temperature field, grain structure, and lead concentration, and the deviation for average lead concentration between simulated and experimental results is less than 9.4 %, which indicates the validity of the current novel numerical model. Meanwhile, the simulated results show that segregated channels always derive from the boundary areas of two grains with different crystallographic orientations, and prefer to accompany tilted upward grains.

引用

页数：11