孪晶诱发塑性钢氢脆研究进展  

Research progress on hydrogen embrittlement of twinning-induced plasticity steels

作　　者：刘帅 陈林 耿一帆 冯运莉 LIU Shuai;CHEN Lin;GENG Yi-fan;FENG Yun-li(College of Metallurgy and Energy,North China University and technology,Tangshan 063210,China)

机构地区：[1]华北理工大学冶金与能源学院,河北唐山063210

出　　处：《塑性工程学报》2021年第7期6-13,共8页Journal of Plasticity Engineering

基　　金：国家自然科学基金资助项目(51801063);河北省高等学校科学技术研究项目(BJ2019018);华北理工大学科研立项项目(X2019314)。

摘　　要：高锰奥氏体孪晶诱发塑性(TWIP)钢具有出色的强度和优越的塑性,作为新一代汽车用钢的有力竞争者,受到人们的广泛关注。作为一种高强钢,TWIP钢在经受大塑性变形或者在充氢环境中服役时,同样会发生氢脆现象,且其力学性能会受到显著影响。近年来,科研工作者对TWIP钢的氢脆行为进行了大量研究,希望通过了解TWIP钢中氢脆断裂的微观机理和影响因素来进一步提升TWIP钢的抗氢脆能力。文章主要从微观组织对氢致裂纹萌生及扩展的影响,晶粒细化、合金元素和应变速率对TWIP钢氢脆的影响4个方面总结了TWIP钢氢脆的近期研究成果,并对每种现象背后的微观机理进行了整理分析。High manganese austenitic twinning-induced plasticity(TWIP)steels possess high strength and excellent ductility,and it receives extensive attention as a promising competitor for next generation of automotive steel.As a kind of high-strength steel,when TWIP steels undergo large plastic deformation or serve in a hydrogen charging environment,they also undergo hydrogen embrittlement and its mechanical properties can be affected significantly.In recent years,researchers conducted a large number of studies on the hydrogen embrittlement behavior of TWIP steels,who hope to improve the anti-hydrogen embrittlement ability of TWIP steel by understanding the microscopic mechanism and influence factors of hydrogen embrittlement of TWIP steel.Recent research results for hydrogen embrittlement of TWIP steel were summarized from four aspects:the influence of microstructure on hydrogen induced crack initiation and propagation,the influence of grain refinement,alloying elements and strain rate on hydrogen embrittlement of TWIP steel.And the microscopic mechanisms behind each phenomenon were arranged and analyzed.

关 键 词：氢脆 孪晶诱发塑性钢 晶粒细化 合金化 应变速率 

分 类 号：TG13[一般工业技术—材料科学与工程] TG14[金属学及工艺—合金]