利用激光熔覆技术制备微米团聚和块状两种不同类型WC/Ni基复合涂层.在MMG-10型摩擦磨损试验机上对涂层进行高温滑动干摩擦磨损实验,并用SEM和EDS对涂层进行磨损形貌观察和成分分析.结果表明,激光熔覆WC/Ni基复合涂层高温磨损性能随着WC含量增加而提高,WC形态为微米团聚质量分数为60％的复合涂层具有优良的高温耐磨性能.高温下60％ WC/Ni基复合涂层主要磨损机制由低温下的磨料磨损转变为氧化磨损和磨料磨损复合作用.
参考文献
| [1] | 夏宝林;李学富.介绍一种表面处理技术--热喷涂[J].石油钻采机械,1979(03):97. |
| [2] | 匡建新;汪新衡;唐明华;朱航生.添加CeO2激光熔覆Ni基WC金属陶瓷涂层的高温干摩擦磨损性能[J].热加工工艺,2011(4):106-109. |
| [3] | J. A. Picas;A. Forn;G. Matthaus.HVOF coatings as an alternative to hard chrome for pistons and valves[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,20065/6(5/6):477-484. |
| [4] | Ming Q.;Chen ZD.;Lim LC..Laser cladding of nickel-based hardfacing alloys[J].Surface & Coatings Technology,19982/3(2/3):174-182. |
| [5] | 赵敏海;刘爱国;郭面焕.WC颗粒增强耐磨材料的研究现状[J].焊接,2006(11):26-29,47. |
| [6] | 张宇;钟敏霖;刘文今.送粉激光熔覆合成制备WC/Ni硬质合金涂层及其耐磨性[J].金属热处理,2005(11):1-5. |
| [7] | 王慧萍;张光钧;戴建强;奚文龙;戈大钫.激光熔覆纳米WCnano/Ni复合涂层的相组织[J].应用激光,2005(6):369-370,394. |
| [8] | 杨胶溪;左铁钏;王喜兵;闫婷;刘华东.激光熔覆WC/Ni基硬质合金组织结构及耐磨性能研究[J].应用激光,2008(6):450-454. |
| [9] | S. W. Huang;M. Samandi;M. Brandt.Abrasive wear performance and microstructure of laser clad WC/Ni layers[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,200411/12(11/12):1095-1105. |
| [10] | L. St-Georges.Development and characterization of composite Ni-Cr + WC laser cladding[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,20071/6(1/6):562-566. |
| [11] | Huang SW.;Nolan D.;Brandt M..Pre-placed WC/Ni clad layers produced with a pulsed Nd : YAG laser via optical fibres[J].Surface & Coatings Technology,20031(1):26-34. |
| [12] | 陈爱智;张永振;陈跃;李鹏.镍基WC陶瓷涂层的干滑动摩擦磨损性能[J].兵器材料科学与工程,2002(5):52-54,57. |
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