摘要
从焊接方法、碳含量、焊接热输入、冷却速度、焊前预热这五个方面分别对贝氏体钢焊接的研究现状进行了对比分析,讨论这些因素对贝氏体钢焊接缺陷的影响机理,并从细晶强化、微合金化等方面对贝氏体钢金相组织及力学性能的改善进行了论述。结果表明,合适的焊接方法和热处理方式、适当降低碳含量、合理的冷却速度并采用焊前预热等,可达到优化贝氏体钢焊接的效果。
The study status of bainite steel welding was compared and analyzed from five aspects: welding method,carbon content, welding heat input, cooling rate, and preheating before welding. And the influence mechanism of these factors on welding defects of bainite steel was discussed. At the same time, the improvement of microstructure and mechanical properties was also discussed from the aspect of fine crystal strengthening and microalloying. The results show that proper welding method and heat treatment method, appropriate reduction of carbon content, reasonable cooling speed and pre-welding preheating can optimize the welding effect of bainite steel.
作者
秦琴
干好
白珂
方鑫
李孟勤
贾文彬
熊友
QIN Qin;GAN Hao;BAI Ke;FANG Xin;LI Mengqin;JIA Wenbin;XIONG You(Intelligent Manufacturing Department,Jincheng College of Sichuan University,Chengdu 611731,China)
出处
《热加工工艺》
北大核心
2021年第11期9-13,共5页
Hot Working Technology
基金
四川省粉末冶金工程技术研究中心开放基金项目(SC-FM YJ2018-07,SC-FMYJ2018-01)。
关键词
贝氏体钢
焊接缺陷
影响因素
微合金化
bainitic steel
weld(ing)flaw
influencing factors
microalloying