首页 | 本学科首页   官方微博 | 高级检索  
     

GH4169合金焊接接头高温疲劳裂纹扩展性能试验研究
引用本文:秦昕,张彦华,熊林玉.GH4169合金焊接接头高温疲劳裂纹扩展性能试验研究[J].材料工程,2009(7).
作者姓名:秦昕  张彦华  熊林玉
作者单位:北京航空航天大学,机械工程及自动化学院,北京,100083
摘    要:对GH4169合金焊接接头在650℃下的疲劳裂纹扩展性能进行了测试和分析.结果表明,疲劳裂纹扩展速率、初始裂纹尺寸、裂纹容限和温度对焊接接头的疲劳裂纹扩展寿命都有影响.母材及焊缝的疲劳裂纹扩展速率和裂纹容限均有较大的差异.

关 键 词:疲劳  裂纹扩展  高温合金

Experimental Investigation on Fatigue Crack Growth in GH4169 Superalloy at High Temperature
QIN Xin,ZHANG Yan-hua,XIONG Lin-yu.Experimental Investigation on Fatigue Crack Growth in GH4169 Superalloy at High Temperature[J].Journal of Materials Engineering,2009(7).
Authors:QIN Xin  ZHANG Yan-hua  XIONG Lin-yu
Abstract:The experimental study on fatigue crack growth of GH4169 superalloy has been carried out. The temperatures of fatigue crack growth tests was 650℃. The results show that the fatigue crack growth rate,initial crack length,critical crack and temperature all have an effect on fatigue crack growth of GH4169. The fatigue crack growth and critical crack of base metal and joints also have great difference.
Keywords:fatigue  crack growth  supperalloy
本文献已被 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号