The life span of many engineering components depends upon their surface properties. The improved surface properties of the materials are essential for enhancing the mechanical and tribological performance of the material. In many applications, the components required only improved surface properties without changing the entire volume properties of the material. The friction stir process (FSP) is a novel processing technique for the fabrication of such surface composites. In the present investigation, the surface composites were fabricated by incorporating molybdenum disulfide (MoS₂) and graphite (Gr) as reinforcement on the surface of aluminum alloy (Al 1120) through the friction stir process (FSP) at tool rotational speed of 1400 rpm and tool feed rate of 40 mm/min process parameters using square profile FSP tool. The tribological behaviors of fabricated surface composites were calculated by using a pin on disk tribometer. It was observed that the wear resistance of surface composites improved as compared to the matrix material.

中文翻译：

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搅拌摩擦法制备Al / Gr / MoS 2表面复合材料的摩擦学行为分析

许多工程组件的寿命取决于它们的表面特性。材料的改善的表面性能对于增强材料的机械和摩擦学性能至关重要。在许多应用中，这些组件仅需要改善的表面特性，而无需改变材料的整体体积特性。搅拌摩擦法（FSP）是用于制造这种表面复合材料的一种新颖的加工技术。在目前的研究中，表面复合材料是通过掺入二硫化钼（MoS ₂）和石墨（Gr）作为增强材料，通过摩擦搅拌工艺（FSP）以1400 rpm的工具转速和40 mm / min的工具进给速度使用方形轮廓FSP工具在铝合金（Al 1120）的表面上进行增强。通过使用盘式摩擦计上的销钉来计算制造的表面复合材料的摩擦学行为。观察到，与基体材料相比，表面复合材料的耐磨性得到了改善。