低碳高强贝氏体钢的研究现状  

Research status of low carbon high strength bainitic steel

作　　者：田亚强 田耕 郑小平 宋进英 魏英立 陈连生 TIAN Ya-qiang;TIAN Geng;ZHENG Xiao-ping;SONG Jin-ying;WEI Ying-li;CHEN Lian-sheng(Key Laboratory of the Ministry of Education for Modern Metallurgy Technology,North China University of Science and Technology,Tangshan 063009,Hebei,China)

机构地区：[1]华北理工大学教育部现代冶金技术重点实验室

出　　处：《钢铁研究学报》2018年第7期505-514,共10页Journal of Iron and Steel Research

基　　金：国家自然科学基金资助项目(51574107);河北省自然科学基金资助项目(E2017209048,E2016209048,E2016209341);河北省教育厅资助项目(BJ2014031)

摘　　要：概述了近些年低碳硅锰系贝氏体钢的国内外研究现状,介绍了贝氏体相变机制及形成过程;并通过分析合金元素对低碳硅锰系贝氏体钢组织与性能的影响,论述了在双相区保温过程中合金元素Mn的配分行为,揭示了低碳高强贝氏体钢的强化机制;最后详细阐述了低碳高强贝氏体钢的工艺、组织、性能三者的相互关系,重点介绍了几种能获得屈服强度与伸长率分别高于1 000MPa、15%的制备工艺,并在此基础上展望了低碳高强贝氏体钢的主要研究方向。The research status of low carbon Si-Mn bainitic steel at home and abroad in recent years was summarized.The mechanism of bainite transformation and the formation process were introduced.By analyzing the effects of alloying elements on the properties and microstructure of low carbon Si-Mn bainitic steel,the partitioning behavior of alloying element Mn in the process of dual phase insulation was discussed and the strengthening mechanism of low carbon bainitic steel was revealed.Finally,the relationship between the technology,organization and properties of low carbon high strength bainitic steel was elaborated and several kinds of preparation techniques which can obtain yield strength and elongation higher than 1 000 MPa and 15% respectively were introduced.On this basis,the main research directions of low carbon high strength bainitic steels were prospected.

关 键 词：低碳贝氏体钢 合金元素 强韧性 组织 性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]