钒对离心复合铸造轧辊用镍铬钼冷硬铸铁组织与性能的影响  

Effect of V on Microstructure and Properties of Ni-Cr-Mo Chilled Cast Iron From Centrifugal Composite Casting Roll

作　　者：杨帆[1] 夏鹏举[1] 寇小平[1] 王永善[1] 张伟 

机构地区：[1]陕西理工学院材料科学与工程学院,陕西汉中723000 [2]淄博桓台金泰轧辊有限公司,山东淄博256403

出　　处：《热加工工艺》2015年第1期52-55,共4页Hot Working Technology

基　　金：陕西理工学院专项科研基金资助项目(SLGQD13-22)

摘　　要：向离心复合铸造镍铬钼铸铁轧辊材料中添加钒来进行合金化处理,研究其对镍铬钼铸铁材料组织与性能的影响。结果表明:由于添加钒形成固有的碳化物VC,随着钒含量的增加,能改善碳化物的形貌与分布,使碳化物由网状分裂为长条状且分布均匀,细化奥氏体晶粒组织。在含钒量达到1.2wt%时,其综合性能最好。With the addition of V to the centrifugal casting of Ni-Cr-Mo cast iron roll for alloying treatment, the effect of V on the microstructure and properties of the materials were studied. The results show： since the V forms its immanent carbide VC, with V content increasing, it can improve the morphology and the distribution of the carbides, make the net carbides become strip carbides with the uniform distribution, and refine the austenite grain. With the addition of 1.2% V, the comprehensive properties of the alloy is best.

关 键 词：镍铬钼无限冷硬铸铁 合金化处理 显微组织 钒 

分 类 号：TG249.4[金属学及工艺—铸造]