Microstructures and wear properties of YPSZ/CeO₂ reinforced composites deposited by laser cladding

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• 作者：Jianing Li^a ; Chuanzhong Chen^a ; ^{czchen@sdu.edu.cn} ; Diangang Wang^a ; Wei Li^a ; ^b
• 关键词：A. Metal-matrix composites (MMCs) ; B. Surface properties ; B. Wear ; E. Surface treatments ; Laser cladding
• 刊名：Composites Part B: Engineering
• 出版年：2012
• 出版时间：April, 2012
• 年：2012
• 卷：43
• 期：3
• 页码：896-901
• 全文大小：1032 K

文摘

In this study, the influence of YPSZ/CeO₂ on the surface performance of the laser-cladded composites was firstly researched. Laser cladding of the Fe₃Al/Co42B + YPSZ/CeO₂ pre-placed powders on Ti-6Al-4V alloy can form the composite coating, which increased the wear resistance of the substrate. With addition of 20 wt. % TiC, the longevity of the molten pool decreased, leading to the decreasing of the growth time of the precipitates and the content of CoTi, TiNi, AlNi, Ti₃Al and TiB phases. The addition of 20 wt. % TiC did not improve the tribological properties of the Fe₃Al/Co42B + YPSZ/CeO₂ laser-cladded composite coating.