摘要
采用焊接试验和声发射监测对斜Y字型坡口SPV490Q钢焊接试件焊后延迟裂纹形成过程的声发射信号进行了分析,研究了低合金高强钢焊接延迟裂纹孕育、扩展和开裂过程的声发射信号特性。通过对不同规格和焊接条件的焊接试件进行对比,进一步得出了该材料焊接延迟裂纹开裂敏感特性。
The acoustic emission signals of the post-weld delayed crack formation process of the oblique Y-shaped groove SPV490Q steel welded specimens were analyzed by means of welding test and acoustic emission monitoring.The acoustic emission signal characteristics of delayed cracking,expansion and cracking in low-alloy high strength steel were studied.By comparing the welded specimens with different specifications and welding conditions,the sensitive characteristics of delayed crack cracking of the material were obtained.
作者
刘延雷
黄泽
杨象岳
陈涛
孙海燕
廖晓玲
张颖
LIU Yanlei;HUANG Ze;YANG Xiangyue;CHEN Tao;SUN Haiyan;LIAO Xiaoling;ZHANG Ying
出处
《化工装备技术》
CAS
2019年第6期6-10,共5页
Chemical Equipment Technology
基金
国家质检总局科技计划项目(2016QK164)
关键词
低合金高强钢
延迟裂纹
声发射监测
开裂敏感特性
Low-alloy high-strength steel
Welding delayed crack
Acoustic emission signal monitoring
Cracking sensitivity
