锆基非晶合金激光对接焊温度场仿真与晶化演变分析  

Simulation of Temperature Field and Analysis of Crystallization Evolution in Laser Butt Welding of Zr-Based Amorphous Alloys

作　　者：刘武猛 郭纯 李云 吴随松 营梦 康泰宇 Liu Wumeng;Guo Chun;Li Yun;Wu Suisong;Ying Meng;Kang Taiyu(College of Mechanical Engineering,Anhui Polytechnic University,Wuhu 241000,Anhui,China;College of Mechanical Engineering,Anhui Science and Technology University,Chuzhou 233100,Anhui,China)

机构地区：[1]安徽工程大学机械工程学院,安徽芜湖241000 [2]安徽科技学院机械工程学院,安徽滁州233100

出　　处：《应用激光》2023年第11期63-70,共8页Applied Laser

基　　金：安徽省高校优秀拔尖人才培育项目(gxbjZD2022046);安徽省自然科学基金项目(1908085QE174,2108085ME167);安徽科技学院人才项目(RCYJ201905);安徽科技学院学术和技术带头人后备人选项目(202101);安徽省高校科学研究项目(YJS20210558,KJ2020A0073);安徽省高校协同创新项目(GXXT-2019-022)。

摘　　要：为更好地分析非晶合金在激光焊接过程中受到的热循环与晶化的关系,使用ANSYS软件的Workbench平台,构建瞬态热模型并分析Zr_(63.7)Cu_(17.5)Ni_(13.1)Ti_(3.9)Fe_(1.8)非晶合金的激光焊接温度场变化过程。通过仿真获得了缝区域的温度场及熔化区和热影响区尺寸,通过添加温度探针获得数个特征点的热循环曲线,根据热循环曲线与DSC曲线进行热分析。通过检测结果与分析发现,仿真结果与相对应区域的试验金相图片具有较高的吻合度,并通过热循环曲线解释了热影响区晶化产生的原因。可以看出,在优化并使用合理的边界条件的情况下,温度场模拟可以对锆基非晶合金在激光焊接过程中的形貌与晶化区域进行预测,有利于优化焊接工艺,并指导后续的锆基非晶合金的激光焊接。To enhance the analysis of the relationship between thermal cycle and crystallization in laser welding of amorphous alloys,a transient thermal model was established using ANSYS software's Workbench platform,and the temperature field change process of laser welding of Zr_(63.7)Cu_(17.5)Ni_(13.1)Ti_(3.9)Fe_(1.8)amorphous alloy was analyzed.The temperature field and the sizes of melting zone and heat affected zone in the weld zone were obtained by simulation.The thermal cycle curves of several charac-teristic points were obtained by adding temperature probes.The thermal analysis was carried out according to the thermal cycle curves and DSC curves.Through the test results and analysis,it is found that the simulation results are in good agreement with the experimental metallographic images of the corresponding region,and the cause of crystallization in the heat affected zone is explained through the thermal cycle curve.Therefore,the study shows that given optimized and reasonable boundary condi-tions,temperature field simulation can predict the morphology and crystallization region of Zr-based amorphous alloy during la-ser welding.This insight could prove valuable for optimizing the welding process and guiding subsequent laser welding of the Zr-based amorphous alloy.

关 键 词：温度场仿真 激光焊接 非晶合金 晶化 

分 类 号：TG147[一般工业技术—材料科学与工程]