Abstract This work concentrates on the preparation of AA6061/(0, 2, 4, 6, 8 wt.%) rice husk ash (RHA) aluminum matrix composites (AMCs) using compocasting and investigation of the dry sliding wear behavior by means of pin-on-disc apparatus at room temperature. The microstructures of the composites were studied using scanning electron microscopy and electron back scattered diffraction. The micrographs confirmed successful incorporation of RHA particles into the aluminum matrix. A proper distribution of RHA particles without segregation was achieved. RHA particles refined the grains of the aluminum matrix and improved the wear resistance of the composite. The influence of RHA particulate content and applied load on the worn surface and wear debris was further reported. RHA particles improved the wear resistance of the composites and reduced the damage on the worn surface. The wear mode changed with increase in the content of RHA particles and the applied load.

中文翻译：

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AA6061铝合金复合材料增强稻壳灰颗粒的干滑动磨损行为

摘要 本工作的重点是使用复合浇铸制备 AA6061/(0, 2, 4, 6, 8 wt.%) 稻壳灰 (RHA) 铝基复合材料 (AMC) 并通过销钉研究干滑动磨损行为。 - 在室温下的光盘装置。使用扫描电子显微镜和电子背散射衍射研究了复合材料的微观结构。显微照片证实了 RHA 颗粒成功地结合到铝基体中。实现了没有偏析的 RHA 颗粒的适当分布。RHA颗粒细化了铝基体的晶粒，提高了复合材料的耐磨性。进一步报告了 RHA 颗粒含量和施加的载荷对磨损表面和磨损碎屑的影响。RHA颗粒提高了复合材料的耐磨性，减少了磨损表面的损伤。磨损方式随着RHA颗粒含量和施加载荷的增加而变化。