马永庆*， 张洋， 刘艳侠， Zhanping Zhang， Yumei Dai， Tao Yu
（ 大连海事大学； ）
职称论文发表摘要： he solidification structure of high vanadium and high chromium white cast iron containing nickel is mainly composed of matrix (martensite and retained austenite ),spherical carbide VC eutectic carbide M7C3 .The adding nickel have guaranteed that the as-cast structure of the matrix of high vanadium and high chromium white cast iron is martensite and austenite. The highest hardness can obtained by second hardening during the tempering at high temperature (～560℃),and the vigorous oxidation phenomenon during the quenching at very high temperature (>900℃) can be avoided, which make the high vanadium and high chromium white cast iron become a kind of applied wear resistance material. When carbon content is 3.3% and nickel content is 0.8-1.2% in the alloy, the retained austenite in high vanadium and high chromium white cast iron is decomposed essentially by tempering at 560℃ and The highest hardness is HRC64. When lower carbon content in alloy, the highest tempering hardness decreases and th
职称论文发表关键词： Fe-Cr-V-Ni-C system cast alloys; solidification structure; carbide volume fraction; matrix composition; tempering characteristics
Ma Yongqing *， Zhang Yang ， Liu Yanxia ， Zhanping Zhang， Yumei Dai， Tao Yu
（ Dalian Maritime University； ）
Abstract： he solidification structure of high vanadium and high chromium white cast iron containing nickel is mainly composed of matrix (martensite and retained austenite ),spherical carbide VC eutectic carbide M7C3 .The adding nickel have guaranteed that the as-cast structure of the matrix of high vanadium and high chromium white cast iron is martensite and austenite. The highest hardness can obtained by second hardening during the tempering at high temperature (～560℃),and the vigorous oxidation phenomenon during the quenching at very high temperature (>900℃) can be avoided, which make the high vanadium and high chromium white cast iron become a kind of applied wear resistance material. When carbon content is 3.3% and nickel content is 0.8-1.2% in the alloy, the retained austenite in high vanadium and high chromium white cast iron is decomposed essentially by tempering at 560℃ and The highest hardness is HRC64. When lower carbon content in alloy, the highest tempering hardness decreases and th
Keywords： Fe-Cr-V-Ni-C system cast alloys; solidification structure; carbide volume fraction; matrix composition; tempering characteristics
中国科技论文在线：马永庆，张洋，刘艳侠等. Solidification Structure and Tempering Characteristics of Fe-Cr-V-Ni-C System Cast Alloys[EB/OL].北京：中国科技论文在线
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