Influence of Cr, Mn and Mo Addition on Structure and Properties of V Microalloyed Medium Carbon Steels

查看全文 作　　者：Abdunnaser [1]Fadel;Dragomir Glii[1];Nenad Radovi[1];Djordje [1]Drobnjak

机构地区：[1]Department of Metallurgical Engineering, Faculty of Technology and Metallurgy, University of Belgrade

出　　处：《Journal of Materials Science & Technology》索引2012年第28卷第11期,共6页

基　　金：indebted to Ministry of Education and Science of Serbia for financial support(Project OI174004) 摘　　要：The effect of austenitizing temperature and Cr, Mo and Mn addition on microstructure and mechanical properties of V microalloyed medium carbon steel has been studied by means of metallography and mechanical testing. The addition of Cr, Mn and Mo leads to a decrease in yield strength (YS) by approximate 100 MPa in comparison to the base steel. It is assumed that Mn and Mo increase hardenability by promoting the formation of bainitic sheaves (BS), i.e. by suppressing the formation of ferrite-pearlite and acicular ferrite (FP-AF). Cr at the level used in this work is not that effective. Presence and packet size of bainitic sheaves decrease the Charpy V-notch impact energy at 20℃ (CVN20) in comparison to ferrite-pearlite and acicular ferrite microstructures. 关键词：力学性能测试 V微合金化中碳结构钢中碳钢针状铁素体铬奥氏体化温度锰

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Influence of Cr, Mn and Mo Addition on Structure and Properties of V Microalloyed Medium Carbon Steels

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