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05cupcrni gang bao ban da jie jie tou pi lao xing neng yan jiu
Author(s): 
Pages: 27-30
Year: Issue:  4
Journal: Welding Technology

Keyword:  薄板05CuPCrNi耐候钢电阻点焊胶接点焊塞焊疲劳性能;
Abstract: 通过脉动拉伸疲劳试验及疲劳断口形貌分析,确定了不同厚度薄板05Cu PCr Ni耐候钢搭接接头疲劳性能最佳的焊接方法。结果表明:2 mm+2 mm和2.5 mm+2.5 mm的05Cu PCr Ni耐候钢胶接点焊、2 mm+2.5 mm的05Cu PCr Ni耐候钢塞焊时其搭接接头的疲劳性能最好;疲劳断裂试件均启裂于熔合区,启裂区无缺陷,熔合区应力集中大是断裂的主要原因,扩展区存在疲劳辉纹,终断区呈剪切韧窝+解理形态。
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