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中文摘要：
研究了不同锻压变形量（30%、50%、70%）对Al3Ti/6063Al复合材料显微组织及摩擦磨损性能的影响。研究结果表明,复合材料锻压变形后,原位Al3Ti增强颗粒断裂、破碎,沿平行于锻压方向呈明显的定向分布,基体晶粒变形剧烈,形成流线型织构,材料内部产生大量位错。随锻压变形量的增加,摩擦系数先增加后减小;在相同载荷下,70%变形锻压样的摩擦系数最小;复合材料磨损表面粗糙度随锻压变形量的增加而减小,变形量为30%时,粗糙度波动范围最小,变化相对稳定;磨痕宽度随锻压变形量增加而变宽,磨痕深度则变浅;磨损机理主要是磨粒磨损。
英文摘要：
The effects of forging deformation amount of 30%, 50% and 70% on the microstructures and friction and wear properties of the Al3Ti/6063 Al composites were investigated. The results show that in-situ Al3Ti reinforcement particles fracture, crush and arrange obviously parallel to the forging direction after forging. Matrix grains deform severely and the streamline texture is formed. A large number of dislocations are generated inside the material. With the increase of the forging deformation amount, the friction coefficient increases first and then decreases. The friction coefficient is the lowest under the same load when deforming degree reaches 70%. Surface roughness decreases with the increasing of forging deformation amount after wear. When the deforming degree reaches 30%, the fluctuation range of surface roughness is the smallest, and the change is relatively stable. Wear scar is shallower and wider. The wear mechanism is abrasive wear.
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