Quantitative investigation on sidebranching during the solidification of weld pool

被引：0
|
作者：
Jiajie Wang
Wenjian Zheng
Juhao Yu
Jianping Xu
机构：
[1] Heilongjiang Institute of Technology,School of Materials and Chemical Engineering
[2] Zhejiang University of Technology,College of Mechanical Engineering
[3] Zhejiang University of Technology,Institute of Process Equipment and Control Engineering
来源：
Welding in the World | 2021年 / 65卷
关键词：
Sidebranching; Weld pool; Solidification; Phase field; Transient conditions;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The morphology evolutions of the sidebranch during the solidification of weld pool under transient conditions are investigated by experiments and a quantitative phase field (PF) method. The equations represent the transient conditions of the weld pool which are presented and coupled to the PF model. The sidebranching spacing obtained by the PF simulation agrees well with that obtained by the experimental result. The sidebranching spacings formed in transient growth of the weld pool are larger than that under the steady-state conditions extracted from the transient conditions at instantaneous time, and the reasons are discussed by conducting noise amplification theory and time-dependent linear stability analyses.
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页码：2059 / 2069
页数：10
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