Abstract
As a representative of steels available in the market,medium-Mn steel shows vast application prospects in lightweight automobile fields.This review details the research progress of medium-Mn steels,focusing on the following aspects.The roles of common adding elements,rolling technologies,and various heat treatments on the microstructure and mechanical properties of medium-Mn steel are analyzed,thus pro-viding references for designing tailored medium-Mn steel with excellent performance.Considering that hydrogen embrittlement is a challenge faced in the development of high-strength steel,the hydrogen embrittlement behavior of medium-Mn steel is also discussed,particularly emphasizing the influence of microstructure,hydrogen concentration,strain,etc.Furthermore,practical strategies to improve resistance to hydrogen embrittlement are summarized.Finally,this review provides prospects for the development and research prospects of medium-Mn steel.
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