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本文用激光全息法配合声发射监测研究超高强度钢焊缝的延迟裂纹,结果表明:焊接后焊缝的延迟裂纹的启裂和失稳扩展可以被监测到,并且开裂情况与全息相及声发射之间有着一定的关系。
In this paper, laser holography combined with acoustic emission monitoring of ultra-high-strength steel weld delayed cracking, the results show that: after welding delayed cracking of weld cracking and instability can be monitored, and the cracking and holography and sound There is a certain relationship between launch.