TY - JOUR
T1 - Comparative study of moisture corrosion to WS2 and WS2/Cu multilayer films
AU - Xu, Shusheng
AU - Gao, Xiaoming
AU - Sun, Jiayi
AU - Hu, Ming
AU - Wang, Desheng
AU - Jiang, Dong
AU - Zhou, Feng
AU - Weng, Lijun
AU - Liu, Weimin
PY - 2014/5/25
Y1 - 2014/5/25
N2 - Pure WS2 and WS2/Cu multilayer films were deposited by radio frequency sputtering method and the erosion behavior caused by moisture was studied. For the pure WS2 film, the morphology, microstructure, composition and also the tribological properties experienced substantial change upon storage in humid air environments. Depth XPS and Raman analysis showed that the pure WS2 film suffered deep oxidation due to the open structure, but the compact WS2/Cu multilayer film resisted oxidation very well. For the multilayer film, the oxidation was restricted on the surface layer owing to the protective effect of the reactive product cladding layer of W and Cu oxidation and the compact microstructure. The open lamella structure of pure WS2 film allowed moisture to diffuse into the film interior, and so the deep oxidation, evolution of structure and Fe substrate corrosion contributed to the deterioration of tribological properties. The WS2/Cu multilayer film exhibited better deep oxidation resistance even after storage for long durations in humid air environments, and accordingly still showed low and stable friction coefficient and long wear life.
AB - Pure WS2 and WS2/Cu multilayer films were deposited by radio frequency sputtering method and the erosion behavior caused by moisture was studied. For the pure WS2 film, the morphology, microstructure, composition and also the tribological properties experienced substantial change upon storage in humid air environments. Depth XPS and Raman analysis showed that the pure WS2 film suffered deep oxidation due to the open structure, but the compact WS2/Cu multilayer film resisted oxidation very well. For the multilayer film, the oxidation was restricted on the surface layer owing to the protective effect of the reactive product cladding layer of W and Cu oxidation and the compact microstructure. The open lamella structure of pure WS2 film allowed moisture to diffuse into the film interior, and so the deep oxidation, evolution of structure and Fe substrate corrosion contributed to the deterioration of tribological properties. The WS2/Cu multilayer film exhibited better deep oxidation resistance even after storage for long durations in humid air environments, and accordingly still showed low and stable friction coefficient and long wear life.
KW - Anti-humidity
KW - Microstructure
KW - Tribological properties
UR - http://www.scopus.com/inward/record.url?scp=84898472656&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2014.03.001
DO - 10.1016/j.surfcoat.2014.03.001
M3 - 文章
AN - SCOPUS:84898472656
SN - 0257-8972
VL - 247
SP - 30
EP - 38
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
ER -