Effects of RE,V,Ti and B composite modification on the microstructure and properties of high chromium cast iron containing 3% molybdenum

查看全文 作　　者：GUO Erjun WANG Lihua WANG Liping HUANG [1]Yongchang

机构地区：[1]School of Materials Science and Engineering, Harbin University of Science and Technology Harbin 150080, China

出　　处：《Rare Metals》索引2009年第28卷第6期,共6页

基　　金：supported by the Harbin Scientific Research Fund for Young Scholars (No.2005AFQXJ030);the Harbin Science and Technology Project (No.2002AA5CG026);the Foundation of Heilong-jiang Educational Committee (No.11511051) 摘　　要：The effects of RE, V, Ti and B on the microstructure and properties of high chromium cast iron containing 3% molybdenum under as-cast and heat treatment conditions were investigated with the method of comparing experiments. The results show that with the increase of RE content, the primary austenite of high chromium cast iron is obviously refined. The morphology of carbide is changed from netlike and lath to small multiangular isolated blocks or massive blocks, the isolated degree of carbide is improved obviously, and the size is significantly refined. The addition of V and B into high chromium cast iron can refine the microstructure, reduce coarse columnar crystals and make the carbide smaller and uniform. Through composite modification with RE, V, Ti and B, the hardness, wear resistance and impact toughness of high chromium cast iron are increased conspicuously. After heat treatment, the hardness of high chromium iron is increased significantly, but the toughness and wear resistance do not show great improvement. 关键词：高铬铸铁稀土含量复合改性微观结构钼铁热处理条件碳化物形态钒

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Effects of RE,V,Ti and B composite modification on the microstructure and properties of high chromium cast iron containing 3% molybdenum

参考文献(19)

引证文献(4)

耦合文献(116)

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