摘要
本文研究了材料对氧化铝泥浆的冲蚀阻力。试验结果表明,试样材料对氧化铝泥浆的冲蚀阻力,随材料的硬度减少而增加,然而随材料硬度的进一步减少冲蚀阻力转而下降,综合分析了材料的硬度和断裂韧性对材料冲蚀阻力的影响,成功阐明了以前许多研究工作之间关于材料硬度和冲蚀阻力关系不一致的原因,通过电镜表面检验分析,给出了两种材料（麻口铁、Norihard）的冲蚀模式,进而提出了多相材料冲蚀速度的数学表达式。
The erosion of resistance of test materials by atumina sturry increases and then, decreases with naterial hardness decreasing. A schematic drawing is constructed to explain irregular patterns of relation between material erosion resistance and material hardness in previous works through simultaneous examination of hardness and fracture toughness. The modes of material removal of moltled iron and Norihard are established. A model of erosion rate of material with multiphase in microstructure was proposed.
关键词
材料
泥浆泵
冲蚀
硬度
氧化铝
erosion, hardness, fracture toughness, alumina-slurry pump,microstructure.
