摘要
采用阴极充氢、慢应变速率拉伸等试验方法,研究了40CrNiMoA钢在调质和等温淬火条件下的氢致延迟断裂行为。实验结果表明,在等温淬火条件下40CrNiMoA钢的抗氢致延迟断裂能力相对调质条件下的性能显著提高,并且具有更高的硬度和抗拉强度。
The hydrogen-induced delayed fracture behavior of 40 CrNiMoA steel by treatments of quenching & tempering, and isothermal quenching was studied by using cathodic hydrogen-charging and slow strain rate testing. The experimental results indicate that compared with that by quenching & tempering, 40 CrNiMoA steel by isothermal quenching has the resistance to hydrogen-induced delayed fracture significantly improved and also has higher hardness and tensile strength.
作者
Tuguldur Unenbayar
李茂仁
赵明纯
汪砖
许晓嫦
李红英
付平安
刘超
Tuguldur Unenbayar;LI Mao⁃ren;ZHAO Ming⁃chun;WANG Zhuan;XU Xiao⁃chang;LI Hong⁃ying;FU Ping⁃an;LIU Chao(School of Materials Science and Engineering,Central South University,Changsha 410083,Hunan,China;Lengshuijiang Tianbao Industrial Co Ltd,Loudi 417500,Hunan,China)
出处
《矿冶工程》
CAS
CSCD
北大核心
2019年第6期120-123,共4页
Mining and Metallurgical Engineering
基金
国家自然科学基金(51874368)
关键词
紧固件
Cr-Ni-Mo钢
氢致延迟断裂
调质
等温淬火
下贝氏体
fastener
Cr-Ni-Mo steel
hydrogen-induced delayed fracture
quenching and tempering treatment
isothermal quenching treatment
lower bainite
