摘要
本研究采用旋转弯曲焊接接头疲劳试样,通过改变炸药与取样部位之间距离的办法。使试样工作段受到不同强度的冲击波作用,进行疲劳试验.结果表明,16MnR钢焊缝经爆炸处理后,冲击波的塑性作用区、弹性作用区以及弹(?)塑性转变区的疲劳性能均得到改善,但三区有不同的疲劳特性.
In this research, rotational bending welded joint fatigue specimen was used. The welded joints of the specimen in the same state of the initial microstructure and residual stress were subjected to different strength of the shock wave by changing the distance between the explosive and the specimen. The results indicated that after the explosion treatment, the fatigue property of the plastic, clastic and elasto-plastic zones on the 16MnR steel weld, attected by the explosion shock wave, arc all improved but the three zones have different characteristics.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
1993年第2期84-90,共7页
Transactions of The China Welding Institution
基金
国家自然科学基金
关键词
爆炸处理
冲击波
焊缝
疲劳强度
explosion treatment
shock wave
weld
fatigue strength
