• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Fatigue >Investigations on the influence of post weld heat treatment on fatigue crack growth behaviour of electron beam welded AA2219 alloy
【24h】

Investigations on the influence of post weld heat treatment on fatigue crack growth behaviour of electron beam welded AA2219 alloy

机译：焊后热处理对电子束焊接AA2219合金疲劳裂纹扩展行为的影响

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper reports the influence of post weld heat treatment on fatigue crack growth behaviour of electron beam welded AA2219 aluminium alloy. An attempt has been made to enhance the fatigue crack growth resistance of the electron beam welded joints through post weld heat treatment methods such as solution treatment (ST), artificial aging (AA), solution treatment and artificial aging (STA). Electron beam welding machine with 100 kV capacity has been used to fabricate the square butt joints. Servo hydraulic controlled fatigue testing machine with a capacity of 100 kN has been used to evaluate the fatigue crack growth behaviour of the welded joints. Of the three post weld heat treated joints, the solution treated and aged (STA) joints are offering better resistance against the growing fatigue cracks. The superior mechanical properties, preferred microstructures in the weld metal region and favourable residual stress field of the weld region are found to be the reasons for superior fatigue performance of the STA joints compared to other joints.
机译：本文报道了焊后热处理对电子束焊接AA2219铝合金疲劳裂纹扩展行为的影响。已经尝试通过焊后热处理方法例如固溶处理（ST），人工时效（AA），固溶处理和人工时效（STA）来增强电子束焊接接头的抗疲劳裂纹扩展性。具有100 kV容量的电子束焊接机已用于制造方形对接接头。容量为100 kN的伺服液压控制疲劳试验机已用于评估焊接接头的疲劳裂纹扩展行为。在三个焊后热处理接头中，固溶和时效（STA）接头对日益增长的疲劳裂纹具有更好的抵抗力。与其他接头相比，发现STA接头具有优异的机械性能，焊接金属区域中的优选微观结构以及焊接区域的有利残余应力场是STA接头具有优异疲劳性能的原因。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号