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Effect of SiC and MoS2 Co-reinforcement on Enhancing the Tribological and Anti-Corrosive Performance of Aluminum Matrix (Al6063-T6) Nanocomposites
Silicon ( IF 2.8 ) Pub Date : 2021-08-23 , DOI: 10.1007/s12633-021-01334-7
N. Ramadoss 1 , K. Pazhanivel 2 , A. Ganeshkumar 3 , M. Arivanandhan 4
Affiliation  

Particulate reinforced aluminium matrix composites (AMCs) were prepared by stir cast method and their wear and corrosion properties were investigated. The structural and morphological properties of the AMCs were examined by XRD and SEM analysis. EPMA validates the dispersion of SiC and MoS2 particles in the metal matrix. The wear of the aluminium alloy Al6063-T6(AM-0), 3% nano SiC reinforced composite(AMC-1) and 3% nano SiC with 3% micro MoS2 reinforced composite (AMC-2) were studied using ASTM G99–95 standard. The wear rates of AMC- 1 and AMC-2 were relatively lesser than that of AM-0 at all applied loads of 10 N, 20 N and 30 N. However, the friction coefficients of the AMCs were found to be higher than that of AM-0. Particulates micro fracture is found to be the predominant wear mechanism associated with 3 body abrasive wear as indicated by the SEM micrographs of the worn out surfaces. ASTM-B117 has been used to find out the effect of micro-constituents on the corrosion behaviour of AMC-1 and AMC-2 composites. The significant improvements in the corrosion resistance was observed in AMC-2 due to SiC and MoS2 reinforcement. The SEM images of corroded surfaces of the composite illustrate formation of productive layer for reducing the corrosion rate of the composites.



中文翻译:

SiC和MoS2共增强对提高铝基(Al6063-T6)纳米复合材料摩擦学和抗腐蚀性能的影响

采用搅拌浇铸法制备了颗粒增强铝基复合材料(AMCs),并对其磨损和腐蚀性能进行了研究。通过XRD和SEM分析检查AMC的结构和形态特性。EPMA 验证了 SiC 和 MoS 2颗粒在金属基体中的分散性。铝合金Al6063-T6(AM-0)、3%纳米SiC增强复合材料(AMC-1)和3%纳米SiC与3%微米MoS 2的磨损使用 ASTM G99-95 标准研究了增强复合材料 (AMC-2)。在 10 N、20 N 和 30 N 的所有施加载荷下,AMC-1 和 AMC-2 的磨损率相对低于 AM-0。然而,发现 AMC 的摩擦系数高于上午-0。如磨损表面的 SEM 显微照片所示,发现颗粒微断裂是与 3 体磨料磨损相关的主要磨损机制。ASTM-B117 已被用于确定微成分对 AMC-1 和 AMC-2 复合材料腐蚀行为的影响。由于 SiC 和 MoS 2在 AMC-2 中观察到耐腐蚀性的显着改善加强。复合材料腐蚀表面的 SEM 图像说明形成了用于降低复合材料腐蚀速率的生产层。

更新日期:2021-08-24
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