标题：
Wear resistance of Al2O3/WC-Co/epoxy coatings on TC18 (Ti-5Al-5Mo-5V-1Cr-1Fe) alloy
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所属单位：
材料科学与技术学院
发表刊物：
SURFACE & COATINGS TECHNOLOGY
关键字：
Epoxy/Al2O3 coating Epoxy/WC-Co coating Friction and wear TC18 titanium alloy
摘要：
In this paper, Epoxy/Al2O3 and Epoxy/WC-Co coating were obtained on TC18 titanium alloy by air spraying process. The effect of adding nano filler Al2O3 and WC-Co ceramic particle in the epoxy resin coating on dry sliding at ambient temperature has been investigated. It was found that the addition of Al2O3 and WC-Co particles could improve the hardness of epoxy coating while maintaining the toughness of the substrate, which is one of the reasons for the improvement of wear resistance. The results of wear test showed that the friction coefficients of Epoxy/Al2O3 and Epoxy/WC-Co coating were 0.72-0.73 and 0.62, slightly higher than that of the TC18 alloy substrate. However, the specific wear rates of the Epoxy/Al2O3 and Epoxy/WC-Co coating were greatly reduced and the wear resistance was improved. Compared with the TC18 titanium alloy substrate, the wear resistance of Epoxy/Al2O3 coating increased by 64.7%-69% after adding ceramic particles, which was slightly higher than that of Epoxy/WC-Co coating by 59.4%-62%. The excellent wear resistance of the Epoxy/Al2O3 can be attributed to its high resistance to plastic deformation and nano effect of Al2O3 particles. The wear mechanism of TC18 titanium alloy was mainly abrasive wear, while Epoxy/Al2O3 and Epoxy/WC-Co coatings were adhesive wear.
ISSN号：
0257-8972
是否译文：
否
发表时间：
2019-09-25
合写作者：
Li Fengkun,Yan Yuqin,魏东博,汪诗园,Ding Feng,Duan Baozhang,Wang Zhangzhong,张平则
通讯作者：
李淑琴
发表时间：
2019-09-25
学位：工学博士学位
职称：副教授
所在单位：材料科学与技术学院