20MnVB钢碳氮化物析出相的研究  

Study on Carbonitride Precipitate Phase of 20MnVB steel

作　　者：赵西成[1] 于大全[1] 

机构地区：[1]西安建筑科技大学冶金工程学院

出　　处：《金属热处理》1999年第4期16-18,21,共4页Heat Treatment of Metals

基　　金：冶金部基础研究项目

摘　　要：利用透射电镜和能谱分析仪对２０ＭｎＶＢ钢中的碳氮化物析出相进行了研究。结果表明，该钢中的碳氮化物析出相为面心立方结构的Ｖ－Ｔｉ复合碳氮化物（ＴｉｘＶ１－ｘ）ＣＮ。其中Ｖ和Ｔｉ的浓度比值（Ｃｖ／ＣＴｉ）随析出温度升高而降低。析出相的形貌为球形或方形，随析出温度的升高（８６０～１０７０℃），析出相的尺寸增大，数量减少。The carbonitride precipitate phase of 20MnVB steel has been investigated by means of TEM and EADX.The results show that the precipitate phase in 20MnVB steel is V Ti complex carbonitride (T i x V 1-x )CN which has a fcc structure,and the concentration ratio of V and Ti( C v/ C Ti ) decreases with the increase of precipitation temperature.The morphologies of precipitate phase are spherical and cubic.With the increase of precipitation temperature,the size of precipitate phase particles increases and its amount decreases.

关 键 词：硼钢 碳氮化物 (TixV1-x)CN 析出相 合金钢 

分 类 号：TG142.33[一般工业技术—材料科学与工程]