In low-strength metals, the main purpose of enhancing surface properties is to increase the abrasion resistance. One of the new methods for improving the microstructure of the surface layer of metals is the surface composite. In this research, the friction stir processing (FSP) was used to develop an aluminum–nickel intermetallic surface composite. Aluminum 2024 alloy and Ni powder were used as the matrix and reinforcement agent, respectively. Comparison of composite and non-composite FSP samples indicates that adding reinforcements improves the wear resistance of a monolithic metal in all condition. Also, the wear resistance of fabricated composites using activated Al–Ni powder is higher than the others due to the presence of Al₃Ni₂ and Al₃Ni intermetallic compounds. At low traverse speed of the FSP, powder agglomeration occurs, and the powders are not uniformly distributed, as a result, the friction coefficient rises. SEM micrographs of scratched particles of activated composite confirm the delamination mechanism in the wear stable stage.

中文翻译：

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摩擦搅拌法制备铝镍金属间表面复合材料的磨损分析

在低强度金属中，提高表面性能的主要目的是提高耐磨性。改善金属表层微观结构的新方法之一是表面复合。在这项研究中，摩擦搅拌处理 (FSP) 用于开发铝镍金属间化合物表面复合材料。铝2024合金和镍粉分别用作基体和增强剂。复合材料和非复合材料 FSP 样品的比较表明，添加增强材料可以提高整体金属在所有条件下的耐磨性。_{此外，由于 Al 3} Ni ₂和 Al ₃的存在，使用活性 Al-Ni 粉末制备的复合材料的耐磨性高于其他复合材料。镍金属间化合物。在FSP的低移动速度下，粉体发生团聚，粉体分布不均匀，从而导致摩擦系数升高。活化复合材料划伤颗粒的 SEM 显微照片证实了磨损稳定阶段的分层机制。