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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers. Part L, Journal of Materials: Design and Application >A study on the microstructure, hardness, and tribological behavior of aluminum-based metal-matrix composite fabricated through recursive friction stir processing
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A study on the microstructure, hardness, and tribological behavior of aluminum-based metal-matrix composite fabricated through recursive friction stir processing

机译：通过递归摩擦搅拌加工制造铝基金属基质复合材料的微观结构，硬度和摩擦学行为的研究

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摘要

In this work, an Al-Zn-Mg-Cu/TiC metal-matrix composite was fabricated through recursive friction stir processing, and its microstructure, hardness, and tribological properties were investigated. Microstructure examination revealed a homogeneous dispersion of TiC particles in the matrix after six recursive passes. The grains were significantly refined and microhardness of the composite improved due to the presence of TiC particles. Friction coefficient and wear rate of the composite went up with an increase in the applied load and dropped significantly at higher sliding velocities. The morphology of the wear specimens experimented under different testing conditions was analyzed and the corresponding wear mechanisms discussed.
机译：在这项工作中，通过递归摩擦搅拌加工制造了Al-Zn-Mg-Cu / TiC金属 - 基质复合物，并研究了其微观结构，硬度和摩擦学性质。微观结构检查显示六次递归通次后，在基质中的均匀分散。由于TiC颗粒存在，晶粒显着精制，复合材料的微硬度改善。复合材料的摩擦系数和磨损率随着施加的负载的增加而上升，并且在更高的滑动速度下显着下降。分析了在不同测试条件下进行的磨损样本的形态学，并讨论了相应的磨损机制。

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