| 摘要: |
| 为研究退火处理对WC-DLC薄膜结构与性能的影响，采用磁控溅射技术在高速钢表面沉积WC-DLC薄膜，并作不同温度下的退火处理，对不同温度退火处理后的WC-DLC薄膜的结构、摩擦学性能与耐腐蚀性能进行系统表征。结果表明：WC-DLC薄膜呈现出非晶态特征，随着退火温度的上升，薄膜中sp3-C相对含量下降；当退火温度在250 ℃时，WC-DLC薄膜在大气环境下与去离子水环境下分别表现出最优的摩擦学性能，磨损率分别为1.25×10-7 mm3/Nm与1.02×10-7 mm3/Nm。同时，当退火温度低于250 ℃时，WC-DLC薄膜的耐腐蚀性能无明显变化，但当退火温度高于250 ℃时，WC-DLC薄膜的耐腐蚀性明显下降。退火处理对WC-DLC薄膜的热稳定性、摩擦学性能及耐腐蚀性能有重要影响。 |
| 关键词: WC-DLC薄膜 退火 摩擦学性能 耐腐蚀性能 |
| DOI：10.11933/j.issn.1007-9289.20161117005 |
| 分类号:TG174.444 |
| 基金项目:国家自然科学基金（51365016，51611130190）；江西理工大学清江青年英才支持计划 |
|
| Effects of Annealed Treatment on Structure and Performance of WC-DLC Films |
|
LIU Zheng-bing1, ZHOU Sheng-guo1, WU Yang-min1, WANG Shun-cai2
|
|
1.School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi;2.National Centre for Advanced Tribology at Southampton (nCATS), University of Southampton, Southampton SO17 1BJ, UK
|
| Abstract: |
| In order to study the effects of annealing on the structure and properties of WC-DLC films, WC-DLC films were deposited on the surface of high speed steel by magnetron sputtering and annealed at different temperatures. The structure, tribological properties and corrosion resistance of the WC-DLC films annealed at different temperatures were systematically characterized, respectively. The results show that the WC-DLC films are amorphous. With the increase of the annealing temperatures, the relative content of sp3-C decreases. WC-DLC films annealing at 250 ℃ presents the optimal friction performances with wear rate is 1.25×10-7 mm3/Nm in ambient air and is 1.02×10-7 mm3/Nm under deionized water. The corrosion resistance of WC-DLC film has no evident changes under 250 ℃ but degrades obviously when the annealing temperature is higher than 250 ℃. The annealing treatment has important influence on the thermal stability, tribological properties and corrosion resistance of WC-DLC films. |
| Key words: WC-DLC films annealing treatment friction performance corrosion resistance performance |
