Tribological performance of Ni₃Al-15 wt % Ti₃SiC₂ composites against Al₂O₃, Si₃N₄ and WC-6Co from 25 to 800 ¡ãC

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• 作者：Xiaoliang Shi ; ^{sxl071932@126.com} ; Wenzheng Zhai ; Mang Wang ; Zengshi Xu ; Jie Yao ; Siyuan Song ; Abid Qamar ud Din ; Qiaoxin Zhang
• 关键词：Sliding wear ; Metal-matrix composite ; Electron microscopy ; Wear testing
• 刊名：Wear
• 出版年：2013
• 出版时间：15 June, 2013
• 年：2013
• 卷：303
• 期：1-2
• 页码：244-254
• 全文大小：6507 K

文摘

Dry sliding tribological tests of Ni₃Al matrix self-lubricating composites (NMSC) with addition of 15 wt % Ti₃SiC₂ are undertaken against Si₃N₄, Al₂O₃, WC-6Co at 25-800 ¡ãC. The results show that the tribological properties are strongly dependent on the counterface materials. NMSC against Si₃N₄ shows the lower friction coefficients (0.31-0.48) and wear rates (0.34-2.1¡Á10^?5 mm³ N^?1 m^?1) from 25 to 800 ¡ãC, while there is no clear difference in tribological performance of NMSC against Al₂O₃ or WC-6Co. NMSC against Si₃N₄ may be the optimal design for the excellently tribological performance.