期刊
HELIYON
卷 8, 期 9, 页码 -出版社
CELL PRESS
DOI: 10.1016/j.heliyon.2022.e10602
关键词
Silicon carbide; Aluminum composite; Slides wear; SEM; XRD; EDX
In this study, Al-5.6Zn-2.2Mg-1.3Cu composites were prepared by stir casting. It was found that increasing the weight percentage and particle size of SiC particles can improve the wear resistance of the composite material, with composites supplemented with coarse SiC particles outperforming tiny SiC particles in terms of wear resistance.
Stir-casting was employed to create Al-5.6Zn-2.2Mg-1.3Cu composites with particle sizes ranging from 30 to 90 mu m and a weight fraction of 5-15 SiC articles. The mechanical and wear properties of the material have been assessed. The wear-behaviour of Al-5.6Zn-2.2Mg-1.3Cu composites was investigated using dry pin-on-disc wear testing. Various loads (20 N-60 N), speeds (2 m/s-6 m/s), and sliding-distances were used in the sliding wear experiments (2000 m-4000 m). In the experimental process, XRD, SEM, and EDX were used to characterize the microstructures and materials of diverse composites. Uniform dispersion of the SiC particles is clearly observed in the SEM image. The micro hardness of SiC particles increases by 13% when the weight percent of SiC particles is increased from 5% to 15%. SiC particles outperform tiny SiC particles in terms of wear-resistance. With increasing load, the particular wear-rate showed an increasing trend (20-60 N). The wear-rate of the composite lowers as the weight percentage reinforcement increases (wt. 5% to wt. 15%), and the wear-rate of the composite increases when the particle-size (30 mu m-90 mu m) increases. The results demonstrated that composites supplemented with coarse SiC particles outperform tiny SiC particles in terms of wear resistance.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据