交叉焊道附近疲劳裂纹门槛值测定的研究  

MEASUREMENT FOR THRESHOLD OF FATIGUE CRACKING IN THE VICINITY OF PIPE CROSS JOINTS

作　　者：张宝昌[1] 焦伟[1] 马文姝 

机构地区：[1]哈尔滨焊接研究所 [2]黑龙江省机械制造学校

出　　处：《焊接》1990年第1期1-5,共5页Welding & Joining

摘　　要：采用不对称cT试样对交叉焊道附近疲劳裂纹门槛值的测定进行了研究。文中提出的恒载控制最大载荷法,可用于中、低强钢焊接接头裂纹扩展速率门槛值的测定。The threshold value of fatigue cracking in the vicinity of cross joints of pipeworks has been measured using non-symentrical CT specimens. The method to control the maximum load with constant loading, put forward in the paper, is suitable for the threshold measurement of fatigue crack propagation in weld joint of low and medium strength steel.

关 键 词：疲劳 裂纹 门槛值 焊接 接头区 

分 类 号：TG405[金属学及工艺—焊接]