Current Challenges and Opportunities Toward Understanding Hydrogen Embrittlement Mechanisms in Advanced High-Strength Steels: A Review  

作　　者：Binhan Sun Dong Wang Xu Lu Di Wan Dirk Ponge Xiancheng Zhang 

机构地区：[1]Max-Planck-Institut flir Eisenforschung GmbH,Max-Planck-StraBe 1,40237 Dlisseldorf,Germany [2]Department of Mechanical and Industrial Engineering,Norwegian University of Science and Technology,Richard Birkelands vei 2B,7491 Trondheim,Norway [3]Key Laboratory of Pressure Systems and Safety,Ministry of Education,School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai 200237,China

出　　处：《Acta Metallurgica Sinica(English Letters)》2021年第6期741-754,共14页金属学报（英文版）

摘　　要：Hydrogen embrittlement(HE)is one of the most dangerous yet most elusive embrittlement problems in metallic materials.Advanced high-strength steels(AHSS)are particularly prone to HE,as evidenced by the serious degradation of their load-bearing capacity with the presence of typically only a few parts-per-million H.This strongly impedes their further development and application and could set an abrupt halt for the weight reduction strategies pursued globally in the automotive industry.It is thus important to understand the HE mechanisms in this material class,in order to develop effective H-resistant strategies.Here,we review the related research in this field,with the purpose to highlight the recent progress,and more importantly,the current challenges toward understanding the fundamental HE mechanisms in modern AHSS.The review starts with a brief introduction of current HE models,followed by an overview of the state-of-the-art micromechanical testing techniques dedicated for HE study.Finally,the reported HE phenomena in different types of AHSS are critically reviewed.Focuses are particularly placed on two representative multiphase steels,i.e.,ferrite–martensite dual-phase steels and ferrite–austenite medium-Mn steels,with the aim to highlight the multiple dimensions of complexity of HE mechanisms in complex AHSS.Based on this,open scientific questions and the critical challenges in this field are discussed to guide future research efforts.

关 键 词：Hydrogen embrittlement Advanced high-strength steels(AHSS) Damage mechanisms Multiphase steels 

分 类 号：TG142.1[一般工业技术—材料科学与工程]