表面喷涂Mo和WC对TiAl基合金耐磨性的影响
来源期刊:中国有色金属学报2000年第5期
论文作者:欧阳鸿武 李安湘 贺跃辉 黄伯云 唐建成 刘文胜
文章页码:663 - 666
关键词:摩擦; 发动机; TiAl基合金;等离子喷涂
Key words:friction; engine; TiAlbased-alloy; plasmaspray
摘 要:针对TiAl基合金排气门在483Q柴油发动机台架试验后杆部产生局部磨损的情况, 进行了TiAl基合金表面喷涂Mo和WC的摩擦磨损试验研究。结果表明: TiAl基合金表面与Mo 和WC涂层间的结合方式为机械咬合; TiAl基合金表面喷涂Mo能显著提高其耐磨性, 磨损量减少50%; 喷涂WC使硬度提高30%,但耐磨性下降, 磨损量上升30%。
Abstract: The tribological performance of plasma-sprayed Mo and WC on TiAl-based alloy surface was studied to improve TiAl-based alloy's anti-wear properties.Theresults show that the wear mass loss decreases by 50% through the spray of Mo. The hardness of TiAl-based alloy increases by 30% through the spray of WC, andthe wear mass loss increases by 30%.