Microstructure evolution and enhanced vacuum tribological performance of Ni-doped WS2 composite coating
文献类型:期刊论文
作者 | Xu SS(徐书生)1; Weng LJ(翁立军)2; Liu, Yu-Zhen1,3; Kyeong-Hee Kang1,3; Chang-Lae Kim1,3; Dae-Eun Kim1,3 |
刊名 | Surface and Coatings Technology |
出版日期 | 2017 |
卷号 | 325页码:81-88 |
ISSN号 | 0257-8972 |
关键词 | Ws2 Coating Ni Dopant Mechanical Properties Friction Wear Vacuum |
DOI | 10.1016/j.surfcoat.2017.06.036 |
英文摘要 | Ni-doped WS2 composite coatings with various Ni contents were co -deposited using a radio frequency sputtering system on silicon wafer and AISI 440C stainless steel substrates. The microstructural characteristics of the WS2-Ni composite coatings and their tribological properties in vacuum were assessed. During introduction of Ni dopant in the WS2-Ni composite coating the sulfur/tungsten (S/W) ratio in the coating increased due to reduced preferential resputtering of sulfur atoms in the growing coating. The microstructure of the WS2-Ni composite coating varied from a fine columnar structure for Ni content equal to or less than 7.7 at.% to a featureless structure as the Ni content increased further. The Ni dopant inhibited the growth of the coarse columnar WS2 platelets which was accompanied by nanocrystallization and amorphization of the composite coating structure. WS2-Ni composite coatings with fine columnar structure exhibited relatively low hardness but showed a high tendency to form a lubricating transfer layer. It also demonstrated low brittleness and prolonged wear life in vacuum condition compared to coatings with dense featureless structure. The variation in tribological performance between the composite coatings resulted from the different wear mechanisms associated with their distinct microstructures. |
学科主题 | 材料科学与物理化学 |
资助项目 | PVD润滑薄膜研究组 |
语种 | 英语 |
WOS记录号 | WOS:000411296900012 |
资助机构 | the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2010-0018289);the National Key Basic Research Program of China (973) [grant number 2013CB632300];the National Natural Science Foundation of China [grant number 51505465] |
源URL | [http://210.77.64.217/handle/362003/22499] |
专题 | 兰州化学物理研究所_先进润滑与防护材料研究发展中心 兰州化学物理研究所_固体润滑国家重点实验室 |
通讯作者 | Dae-Eun Kim |
作者单位 | 1.Yonsei Univ, Ctr Nanowear, Seoul 03722, South Korea 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China 3.Yonsei Univ, Dept Mech Engn, Seoul 03722, South Korea |
推荐引用方式 GB/T 7714 | Xu SS,Weng LJ,Liu, Yu-Zhen,et al. Microstructure evolution and enhanced vacuum tribological performance of Ni-doped WS2 composite coating[J]. Surface and Coatings Technology,2017,325:81-88. |
APA | Xu SS,Weng LJ,Liu, Yu-Zhen,Kyeong-Hee Kang,Chang-Lae Kim,&Dae-Eun Kim.(2017).Microstructure evolution and enhanced vacuum tribological performance of Ni-doped WS2 composite coating.Surface and Coatings Technology,325,81-88. |
MLA | Xu SS,et al."Microstructure evolution and enhanced vacuum tribological performance of Ni-doped WS2 composite coating".Surface and Coatings Technology 325(2017):81-88. |
入库方式: OAI收割
来源:兰州化学物理研究所
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