Synergistic effects between sulfurized W-DLC coating and MoDTC lubricating additive for improvement of tribological performance

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• 作者：Wen Yue^a ; ^b ; ^{cugbyw@163.com} ; Chunyue Liu^a ; Zhiqiang Fu^a ; ^b ; Chengbiao Wang^a ; ^b ; Haipeng Huang^c ; Jiajun Liu^d
• 关键词：W-DLC coating ; Low temperature ion sulfuration ; MoDTC ; Friction and wear
• 刊名：Tribology International
• 出版年：2013
• 出版时间：June, 2013
• 年：2013
• 卷：62
• 期：Complete
• 页码：117-123
• 全文大小：614 K

文摘

Low temperature ion sulfuration technology was used to obtain sulfurized layer on W doped diamond-like carbon (W-DLC) coating. The tribological behaviors of the pure W-DLC and sulfurized W-DLC coatings were investigated under PAO and MoDTC lubrication conditions. It shows that sulfurized W-DLC coatings can obviously improve their tribological performances under PAO with MoDTC lubrication. The primary reason is due to the formation of WS_x on the surface of sulfurized W-DLC coating, the decomposition of additives for formation a higher ratio of Mo sulfide/Mo oxide and the graphitization for a high ratio of sp²/sp³.