摘要
采用电子探针(EPMA)、X射线衍射(XRD)、扫描电镜(SEM)、显微硬度仪、拉伸试验机分别对铝合金5A06异厚度激光拼焊板接头力学性能及显微组织进行了研究分析。结果表明,焊缝主要组成相是以Al为基体的Al-Si共晶化合物:焊缝区域硬度值从上表面到背面有下降趋势,且平均值略高于母材。
The mechanical properties and microstructure of laser welding thin aluminium alloys sheet （5A06） with different thickness were studied by means of EPMA,XRD,SEM, microhardness meter and draw machine,respectively. The result shows that the welding seam consists of Al-matrix and Al-Si eutectic compounds. The hardness value of the welding seam and fusion line zone declines from the top surface to the backside,and its average value is a little higher than the base metal.
出处
《热加工工艺》
CSCD
北大核心
2007年第19期1-3,共3页
Hot Working Technology
基金
甘肃省自然科学基金(3ZS041-A25-031)
教育部春晖计划资助项目(Z2004-1-62008)
关键词
激光拼焊
力学性能
共晶化合物
laser welding
mechanical properties
eutectic compounds
