【摘要】 针对磨钼矿用磨球的湿式磨损工矿条件,通过时高合金白口铸铁进行成分设计、材料制备以及相应的性能测试和组织观察,分析了不同配比的Cu和V对高合金白口铸铁铸态组织及性能的影响。研究结果表明,不同的Cu和V含量对高合金白口铸铁碳化物的形态和分布影响不同。含量为1．0％的Cu和V的该合金(12．0％Cr),其碳化物呈现短杆状、块状,均匀弥散分布于基体中,材料的硬度、冲击韧度和耐腐蚀磨损性能得到有效提高,相对耐磨性比不合Cu、V的普通高铬铸铁(18．0％Cr)约提高了15％。更多还原

【Abstract】 The influence of different proportion of copper and vanadium on as-cast microstructure and properties of high alloy white cast iron was studied by composition design, e material preparation, property test and microstructure analysis on the working condition of wet wear for grinding balls used in molybdenum mineral. The results show that different contents of copper and vanadium have different effects on the morphology and distribution of carbide of the high alloy white cast iron. The morphology of the carbide distributed uniformly in the matrix is short bar or block in the alloy(12.0% Cr) with copper 1.0% and vanadium 1.0%, thus improve hardness, impact toughness and abrasion corrosion resistance of the material effectively. Its relative abrasion corrosion resistance is approximately 15% higher than that of the plain high chromium casts iron (18. 0% Cr) without copper and vanadium.更多还原