【摘要】 本研究是在高铬铸铁中加钒以得到铸态马氏体基体。在其他元素含量不变的条件下,即C:3.1%,Cr:17%,Mo:0.8%,Si:1%,变动含钒量(0—4.5%)制得了一批试样,观察其金相组织的变化,测量了基体的显微硬度及试样的宏观硬度,用微区分析测定了钒及铬在碳化物中的含量,试验了试样的耐磨料磨损性能,从而得出合适的含钒量为4%左右。更多还原

【Abstract】 This paper expounds the effects of vanadium on the matrix in the micros-tructure of high Chromium white cast iron in the as-cast condition. A set ofspecimens were prepared by varying vanadium content from 0% to 4.5% forconstant contents of other elements, those are C: 3.1%, Cr: 17%, Mo: 0.8%, Si: 1%.The as-cast microstructures of these specimens were observed. The contents ofChromium and vanadium in carbide constituents of a few specimens were analyzedby means of EDAX. The abrasive wear resistance of these specimens was testedin contrast to their bulk hardness. High chromium white cast iron with marten-sitic matrix can be produced in the as-cast condition by adding vanadium about4%, because vanadium promotes the precipitation of secondary carbide.更多还原