摘要
对2219铝合金搅拌摩擦焊接头各区域的断裂性能进行了研究。完成了接头的夏比冲击试验,并对接头各区域冲击断口进行了分析。研究结果表明,2219铝合金搅拌摩擦焊接头的断裂呈韧性,焊核区断裂韧性最好,热影响区和热机影响区断裂韧性无显著差异,低于焊核区断裂韧性,但均高于母材的断裂韧性。
Fracture performance of different area in 2219 aluminum friction stir welded joint was studied. Charpy impact test of the joints were performed and the fracture of different area were studied. The experimental results indicate that fracture of 2219 aluminum friction stir welded joint was ductile and fracture toughness of nugget was good. There was no remarkable differences in fracture toughness between heat affected zone and heat-mechanical affected zone, but their fracture toughness were both lower than that of nugget and higher than that of base metal.
出处
《焊接》
北大核心
2010年第3期63-67,共5页
Welding & Joining
