The study was aimed to develop low cost composites with high specific strength and better performance by incorporating agro waste as reinforcements. Stir casting technique was adopted for fabricating the composites with Al 4032 as matrix material and (0,2,4,6) Wt.% of RHA as reinforcements. The mechanical properties of the produced composites were investigated and wear rate under dry conditions was also experimented, for assessing characteristics of produced composites. EDX and SEM analyses were done for studying the presence and distribution of reinforcements in the matrix material. The surface of specimens after wear test was analyzed from optical microscope images. The influence of process parameters such as reinforcement (Wt.%), speed (rpm) and load (N) on wear rate were identified and optimized for minimum wear rate using Taguchi L₁₆ orthogonal array. Percentage contribution of process parameters was obtained by performing ANOVA. Better results were obtained for composites with 6 Wt.% of RHA having 84 HRB, 92.30 HV, UTS of 383.73 Mpa and UCS of 571.6 Mpa. Minimum wear rate was obtained for composites with 6 Wt.% of RHA at 100 rpm and 10N. Speed was found to be the most contributing factor with 72.94% followed by load of 13.34% and 11.88% for Wt.% of reinforcements.

中文翻译：

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RHA增强对Al 4032复合材料力学和磨损行为的影响

该研究旨在通过将农业废料用作增强材料来开发具有高比强度和更好性能的低成本复合材料。采用搅拌铸造技术制备了以Al 4032为基体材料和（0,2,4,6）Wt。％RHA作为增强材料的复合材料。研究了所生产的复合材料的机械性能，并在干燥条件下进行了磨损率实验，以评估所生产的复合材料的特性。进行了EDX和SEM分析，以研究基体材料中增强材料的存在和分布。从光学显微镜图像分析磨损试验后的样品表面。使用Taguchi L识别并优化了工艺参数（例如补强率（重量％），速度（rpm）和载荷（N））对磨损率的影响，并优化了最低磨损率_16个正交数组。通过执行方差分析获得过程参数的百分比贡献。对于具有6 Wt。％的RHA的复合材料，具有84 HRB，92.30 HV，UTS 383.73 Mpa和UCS 571.6 Mpa，可以获得更好的结果。在100 rpm和10N下，具有6 Wt。％RHA的复合材料获得了最小磨损率。速度是最主要的因素，其速度为72.94％，其次是钢筋的重量百分比为13.34％和11.88％。