工具钢AHPV10热力学平衡相图研究  

Study of thermodynamic equilibrium phase diagram for tool steel AHPV10

作　　者：李小明[1] 钟海林[1] 辛冬梅[2] 吴立志 况春江[1] 

机构地区：[1]安泰科技股份有限公司,北京100081 [2]北京科技大学材料学院,北京100083 [3]河冶科技股份有限公司,石家庄050031

出　　处：《粉末冶金技术》2012年第2期103-107,117,共6页Powder Metallurgy Technology

基　　金：国家"十一五"科技支撑计划资助项目(2007BAE51B05);"863"计划资助项目(2012AA03A509)

摘　　要：采用Thermal-calc软件对主要合金为C-Fe-Cr-Mo-V的高钒工具钢AHPV10(AISI A11)进行了相图计算,对AHPV10的基体成分、碳化物成分、碳化物含量进行了检测,实验结果均与计算结果吻合良好。AH-PV10相图计算结果描述了AHPV10在不同温度下存在的相及各相析出序列。结果表明:MC型碳化物首先从钢液中析出,随着温度降低,在1 315℃左右,伴随液相向奥氏体发生转变,MC型碳化物开始大量析出,在1120℃时MC型碳化物的质量分数达到14%。The phase diagram of tool steel AHPV10（AISI A11） with main composition of C-Fe-Cr-Mo-V was computerized by using software ＂Thermo-calc＂.The matrix composition,carbides composition and content of AHPV10 were detected,and the calculated and detected results were well consistent.The calculated phase diagram of AHPV10 describes the phases at different temperature and their precipitation sequence.MC firstly precipitates from the liquid,and the precipitation is largely accelerated by the transformation of liquid to austenite when the temperature drops to 1 315℃,the mass fraction of MC is 14% when the temperature reaches 1 120℃.

关 键 词：AHPV10 Thermal-calc MC碳化物 工具钢 相图 

分 类 号：TG142.45[一般工业技术—材料科学与工程]