Reaction Kinetics of Mg2Si in the Laser Welding Pool of Aluminum Alloys

摘要：

　　The metallurgy reactions in the weld pool were analyzed with the application of reaction kinetics.Furthermore a formula to quantificationally calculate the amount of Mg2Si was generated.By means of calculating the thermodynamic condition of the reaction and combined with the verification testing, this article indicates that the metallurgical product Mg2Si was created in the liquid weld pool but not separated out from the arborescent crystal during its solid state.This thesis summarizes the precipitation mechanism of Mg2Si and explains the configuration, amount and location where Mg2Si was separated out by analyzing the phase diagrams and constitution diagrams.Relevant data suggests that: the content of Mg2Si is slightly less than Mg.

关键词： Reaction Kinetics Aluminum Alloy Laser Welding Mg2Si

作者: Lu Yang Qinghua Wang Jie Li Yuan Liu Anguo Huang

作者单位: College of Materials Science & Engineering,State Key Laboratory of Material Processing and Die & Mou State Nuclear Power Engineering Co.Ltd.,Beijing,China

会议类型: 国际会议

会议名称: the 2013 2nd International Conference on Metallurgy Technology and Materials(ICMTM2013)(第二届冶金技术与材料国际会议)

会议地点: 香港

会议语种:英文

页码: 55-63

在线出版日期: 2013-06-25（万方平台首次上网日期，不代表论文的发表时间）