Applications of aluminum matrix composites are increasing in aerospace, automotive and biomedical fields because of their high strength, light weight and good wear resistant properties. From an intense literature review it is observed that various combinations of aluminum alloys have been developed through different manufacturing methodologies and their characteristics have been studied. It is identified that the study of a composite material consists of AA6061 alloy as a matrix material reinforced with SiC and B4C; a comparative experiment on sliding wear characteristics, hardness and wear resistant properties of nanocomposite with different aging time is a novel area yet to be undertaken. This paper presents a study of sliding wear characteristics in silicon carbide, boron carbide reinforcement prepared by using stir casting process. The hardness and wear resistance properties of nanocomposites with different aging time were measured in the work. When comparatively analyzed with AA6061, AA6061 reinforced with silicon carbide, AA6061 reinforced with boron carbide exhibited a steady and higher hardness than the other two metal composites. Also, we observed that when sliding wear characteristics are compared, the AMC reinforced with boron carbide exhibits an optimum wear rate. The optimal values of control parameters in wear rate and friction coefficient for boron carbide reinforced aluminum matrix composites are determined by response surface methodology. The control parameters considered are applied load, speed, weight % of reinforcement and distance. The effect of control parameters on the output variables was investigated by analysis of variance (ANOVA) and response plot. Interestingly, 27% increase in hardness value for B4C reinforced composite material at the aging time of 200 minutes was observed. Furthermore, wear rate for B4C reinforced composite material was four times reduced as compared to monolithic AA6061. These improvements may be attributed to the homogeneous particle size, particle distribution without agglomeration and optimized parameters.

铝基复合材料的高强度，轻质和良好的耐磨性使其在航空航天，汽车和生物医学领域的应用日益广泛。从大量的文献综述中可以观察到，已经通过不同的制造方法开发了铝合金的各种组合，并且已经研究了它们的特性。可以确定的是，复合材料的研究以Aa6061合金为基质，并用SiC和B4C增强。不同老化时间的纳米复合材料的滑动磨损特性，硬度和耐磨性能的对比实验是一个尚待研究的新领域。本文介绍了采用搅拌铸造法制备的碳化硅，碳化硼增强材料的滑动磨损特性。在工作中测量了不同老化时间的纳米复合材料的硬度和耐磨性。与AA6061，用碳化硅增强的A6061，用碳化硼增强的A6061进行比较分析时，显示出比其他两种金属复合材料稳定且更高的硬度。此外，我们观察到，当比较滑动磨损特性时，用碳化硼增强的AMC表现出最佳的磨损率。通过响应面法确定了碳化硼增强铝基复合材料的磨损率和摩擦系数控制参数的最佳值。考虑的控制参数为施加的载荷，速度，钢筋的重量百分比和距离。通过方差分析（ANOVA）和响应图研究了控制参数对输出变量的影响。有趣的是，在200分钟的老化时间下，B4C增强复合材料的硬度值增加了27％。此外，与整体式AA6061相比，B4C增强复合材料的磨损率降低了四倍。这些改进可归因于均一的粒度，无团聚的颗粒分布和优化的参数。