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研究了稀土铈对锡磷青铜ＱＳｎ７－０．２合金性能及显微组织的影响，确定了铈在锡磷青铜中的最佳添加量ω为０．０９～０．１３，通过金相显微组织观察和电镜分析发现，加有少量铈的锡磷青铜合金铸造组织枝晶网格变细小，变形退火后晶粒组织明显细化，添加少量铈可净化合金，消除其杂质的有害作用，并能与铜生成ＣｕＣｅＰ金属间化合物，呈点状弥散分布在晶界或晶内细化了合金组织：加铈又显著提高了合金基体中的位错密度，这些都有效地提高了合金硬度，增强了合金的耐磨性．
The effect of rare earth cerium on the properties and microstructure of the tin-phosphorus bronze QSn7-0.2 alloy was studied. The optimal addition amount of cerium in tin-phosphor bronze was 0.09-0.13. The microstructure of cerium- Electron microscopy analysis showed that the microstructure of the tin-phosphor bronze alloy with a small amount of cerium became finer and the grain structure became finer after the deformation annealing. A small amount of cerium was used to purify the alloy to eliminate the detrimental effects of impurities. Copper CuCeP intermetallic compounds generated in the form of point-like dispersion in the grain boundaries or grain refinement of the alloy microstructure: Cerium also significantly increased the dislocation density in the alloy matrix, which are effectively increased alloy hardness, enhanced alloy Wear resistance.