期刊
APPLIED SURFACE SCIENCE
卷 437, 期 -, 页码 233-244出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2017.12.167
关键词
MoS2/Pb-Ti multilayer coating; Corrosion behavior; Porosity; Salt spray test; Tribological properties
类别
资金
- National Natural Science Foundation of China [U1737214, 51775539]
- Natural Science Foundation of Zhejiang Province of China [LZ17E050004]
The pure MoS2 coating always performs high friction coefficient and short service life when used in high humidity or after long-time storage in humid atmospheric environment. In this study, the MoS2/PbTi composite and MoS2/Pb-Ti multilayer coatings are deposited to improve the corrosion resistance in 3.5 wt% NaCl solution and tribological performance in high humidity condition. The electrochemical impedance spectra and salt spray test shown that the MoS2/Pb-Ti composite and multilayer coatings can inhibit the permeation of oxygen and other corrosive elements, thus resulting a high corrosion resistance. Furthermore, compared with pure MoS2 coating, the tribological performance of the MoS2/Pb-Ti composite and multilayer coatings is also improved significantly owing to the high mechanical properties and compact structure. Moreover, the heterogenous interfaces in MoS2/Pb-Ti multilayer coating play an important role to improve the corrosion resistance and tribological performance of coatings. Overall, the dual-doping and multilayer construction are promising approaches to design the MoS2 coatings as the environmentally adaptive lubricants. (C) 2017 Elsevier B.V. All rights reserved.
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