无机材料学报

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金属-陶瓷复合涂层摩擦学特性的SEM和SEAM研究

彭海涛1; 金元生1; 方健文2; 殷庆瑞2   

  1. 1. 清华大学摩擦学国家重点实验室, 北京 100084; 2. 中国科学院上海硅酸盐研究所, 上海 200050
  • 收稿日期:2000-01-27 修回日期:2000-03-06 出版日期:2001-01-20 网络出版日期:2001-01-20

SEM and SEAM Study on Tribological Performance of Metal/Ceramic Composite Coatings

PENG Hai-Tao1; JIN Yuan-Sheng1; FANG Jian-Wen2; YIN Qing-Rui 2   

  1. 1. State Key Laboratory of Tribology; Tsinghua University; Beijing 100084; China; 2. Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China
  • Received:2000-01-27 Revised:2000-03-06 Published:2001-01-20 Online:2001-01-20

摘要: 在SRV摩擦磨损试验机上进行常温干摩擦试验,比较了CoCrMoSi+AlZrO和CoCrMoSi+Fe两种大气等离子喷涂金属-陶瓷复合涂层以及C1Mn1Cr1碳钢涂层与35#中碳钢对磨的摩擦学特性;利用扫描电子显微镜(SEM)和扫描电声显微镜(SEAM)观察了磨损表面和亚表层的显微结构,分析了金属-陶瓷复合涂层的磨损机理.结果表明,粘着磨损占主导地位,同时存在微切削和微裂纹的扩展、连接.

关键词: 等离子喷涂, 复合涂层, 磨损机理

Abstract: A series of dry friction tests of metal/ceramic composite coatings and carbon steel coating against mild carbon
steel were carried out under room temperature using an SRV Friction and Wear Tester. The tribological behaviors of plasma sprayed CoCrMoSi+Al2O3ZrO2,
CoCrMoSi+Fe3O4 and Cr1Mn1C1 carbon steel coatings were compared by means of SEM and Scanning Electron Acoustic Microscopy (SEAM). The
results show that microcutting, the propagation and coalescence of micro-cracks of the materials appear in the wear process, adhesion
wear still is the main mechnism of the metal/ceramic composite coatings.

Key words: plasma spraying, composite coating, wear mechanism

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