In this study, an attempt was made to utilize waste products from industries to develop composite materials. In the present study, car scrap aluminium alloy wheels (SAAWs) was used as matrix material. Waste rice husk ash (RHA) was collected from a rice mill to utilize as a primary reinforcement material. Spent alumina catalyst (SAC) waste was used as a secondary reinforcement material. SAC was collected from the oil refinery industry. These wastes produced lots of soil and air pollution. However, by utilizing these wastes, some environment pollutions can be reduced. Car scrap aluminium alloy wheels (SAAWs) based composite material was developed using RHA as primary reinforcement material and SAC as a secondary reinforcement material by stir casting technique followed by squeeze pressure on the universal testing machine (UTM) in mushy zone. Microstructure behaviour shows a uniform distribution of RHA and SAC in a recycled aluminium alloy matrix. Mechanical properties such as hardness, ductility, compressive strength and tensile strength were improved using RHA and SAC as reinforcement material simultaneously in SAAWs matrix material. Thermal expansion behaviour, soil degradation test and corrosion loss were also observed to see the effect of agro-waste RHA and SAC in recycled aluminium alloy.

中文翻译：

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废旧氧化铝催化剂和农业废弃物稻壳灰作为废铝合金车轮基体增强材料的利用

在这项研究中，尝试利用工业废品来开发复合材料。在本研究中，汽车废料铝合金轮毂 (SAAW) 用作基体材料。从碾米厂收集废稻壳灰 (RHA) 作为主要增强材料。废氧化铝催化剂 (SAC) 废料用作二次增强材料。SAC 是从炼油行业收集的。这些废物产生了大量的土壤和空气污染。但是，通过利用这些废物，可以减少一些环境污染。以RHA为一级增强材料，SAC为二级增强材料，通过搅拌铸造技术，然后在糊状区的万能试验机（UTM）上挤压压力，开发了基于汽车废料铝合金轮毂（SAAWs）的复合材料。微观结构行为显示 RHA 和 SAC 在再生铝合金基体中的均匀分布。在SAAWs基体材料中同时使用RHA和SAC作为增强材料，提高了硬度、延展性、压缩强度和拉伸强度等机械性能。还观察了热膨胀行为、土壤降解试验和腐蚀损失，以了解农业废弃物 RHA 和 SAC 对回收铝合金的影响。