焊接凝固过程中微观组织演变研究方法进展  

Progress in research methods of microstructure evolution during welding solidification

作　　者：金铄德 何建萍[1] 潘雪航 JIN Shuode;HE Jianping;PAN Xuehang(School of Materials Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学材料工程学院,上海201620

出　　处：《上海工程技术大学学报》2021年第4期305-314,共10页Journal of Shanghai University of Engineering Science

基　　金：国家自然科学基金资助项目(51775327);上海市科委基础研究重点资助项目(14JC1402700)。

摘　　要：在焊接凝固过程中微观组织演变会影响焊接接头最终的微观组织形貌,进而影响焊接接头的力学性能.对焊接凝固过程中微观组织演变研究方法进行全面探讨,首先讨论基于实验的微观组织演变研究方法包括Gleeble热模拟实验法、焊接接头不同区域微观组织比对的微观组织演变分析方法、基于化学成分改变的微观组织演变分析方法以及同步辐射原位观察法.进一步讨论基于理论的分析方法包括相场法、元胞自动机法、蒙特卡罗法,得出这7种研究微观组织演变的方法各有其优势和局限性.The final microstructure of welding joint is affected by microstructure evolution during welding solidification,and then it affects mechanical properties of welding joint.Experimental-based analysis methods such as Gleeble thermal simulation experimental method,comparisons of microstructures in different areas for welding joint on microstructure evolution analysis method,microstructure evolution analysis method based on chemical composition changed,in-situ observation of synchrotron radiation were discussed.And then,theoretical-based methods of microstructure evolution during welding solidification such as phase field method,cellular automata method,Monte Carlo method were analyzed,and it obtains that these seven methods which are analyzed microstructure evolution during welding solidification have their own advantages and disadvantages.

关 键 词：Gleeble热模拟实验 微观组织比对 同步辐射 相场法 元胞自动机法 蒙特卡罗法 

分 类 号：TG401[金属学及工艺—焊接]