Carbide-free tempered martensite in Fe-C steels  

作　　者：Zhiping Xiong Dezhen Yang Hao Zhang Xingwang Cheng 

机构地区：[1]National Key Laboratory of Science and Technology on Materials under Shock and Impact,School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China [2]Tangshan Research Institute,Beijing Institute of Technology,Tangshan 063000,China

出　　处：《Journal of Materials Science & Technology》2024年第12期22-25,共4页材料科学技术（英文版）

基　　金：National Natural Science Foundation of China(Nos.52271004 and 51901021).

摘　　要：1.Introduction Quenched Fe-C martensite is very strong but brittle due to su-persaturated carbon atoms located at octahedron sites[1].In order to improve the ductility,tempering is necessary.With increasing tempering temperature,the saturated carbon can be sequentially arranged as clusters,segregation into defects like dislocations and interfaces,transition carbides,and cementite[2].As a result,the strength is reduced and the ductility is improved predominantly due to the decreased amount of solid solution carbon[3].

关 键 词：MARTENSITE DUCTILITY TEMPERING 

分 类 号：TG142.1[一般工业技术—材料科学与工程]