Abstract In the present study, we have produced CuAl10Ni5Fe4 alloy powders by using the planar flow casting method. The microstructure, wear response, and corrosion properties of as-cast and P/M parts were systematically investigated, and the improvements by P/M production method were presented. While the as-cast microstructure contained α, β, κii and κiii phases, the rapidly solidified powders had α, and β’ martensite phases. On the other hand, the lower friction coefficient values were obtained in the case of the P/M production technique in comparison to the as-cast state. Also, an improvement in specific wear rate performances of P/M parts compared with the as-cast alloy was observed. It was observed that the P/M parts exhibited better corrosion properties than the as-cast samples.

中文翻译：

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粉末冶金法改善镍铝青铜的显微组织、摩擦学和腐蚀特性

摘要 在本研究中，我们采用平面流铸法生产了CuAl10Ni5Fe4 合金粉末。系统地研究了铸态和粉末冶金零件的微观结构、磨损响应和腐蚀性能，并提出了粉末冶金生产方法的改进。铸态显微组织包含α、β、κii 和κiii 相，而快速凝固的粉末具有α 和β' 马氏体相。另一方面，与铸态相比，在粉末冶金生产技术的情况下获得了较低的摩擦系数值。此外，观察到与铸态合金相比，粉末冶金零件的特定磨损率性能有所改善。观察到 P/M 部件表现出比铸态样品更好的腐蚀性能。