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Friction and wear behavior of diamond-like carbon coating on plasma nitrided mild steel under boundary lubrication |
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| Authors: | Zhengfeng Jia Yanqiu Xia Jinlong Li Xianjuan Pang Xin Shao |
| Affiliation: | aState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 73000, PR China;bCollege of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, PR China;cGraduate School of Chinese Academy of Sciences, Beijing 10039, PR China |
| Abstract: | The friction and wear properties of synthetic ionic liquid functionalized borate esters as additives in poly-alpha-olefin (PAO) were measured for diamond-like carbon (DLC) coating on plasma nitrided AISI 1045 steel. Results show that the borate esters gave much better friction–reduction and antiwear properties for DLC coating/steel and DLC coating/DLC coating sliding pairs than zinc dialkyldithiophosphate (ZDDP). In addition the DLC coating had much better wear resistance than the nitrided mild steel substrate, indicating that duplicate surface modification was more effective in significantly increasing the wear resistance of mild steel. |
| Keywords: | Functionalized borate ester Antiwear additive Diamond-like carbon coating Wear |
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