Tribological behavior of a Ni-WS2 composite coating across wide temperature ranges
Cui, Shuai1; Li, Wen-Sheng2; He, Ling2; Feng, Li2; An, Guo-Sheng2; Hu, Wei1; Hu, Chun-Xia1
Source PublicationRARE METALS
AbstractIn order to reduce the friction coefficient of a pure nickel coating and extend the lifetime of metal parts under extreme friction conditions, a series of Ni-based WS2-composite solid lubrication coating containing different WS2 concentrations were prepared on a 45# mild carbon steel substrate by electroplating. The cyclic voltammetry method was used to investigate the electroplating regulation of the Ni-WS2 composite coatings. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to analyze the microstructures and wear surfaces of the composite coatings, the tribological properties and wear mechanisms of the composite coatings with different WS2 concentrations. The results show that the addition of WS2 can promote the cathode polarization of the electroplating process, and the polarization degree goes up with the increase in WS2 concentrations. The friction coefficient of Ni-composite coatings significantly decreases by the addition of WS2 particles. The lowest friction coefficient at room temperature is obtained at a value around 0.01-0.03 from the coating deposited in the electrolyte solution with a 30 g.L-1 WS2 concentration. The friction coefficient of the Ni-WS2 composite coating remains in 0.01-0.03 with the increase in temperature from room temperature to 300 degrees C. When the temperature goes up to 500 degrees C, the friction coefficient manifests a continuous increase to 0.12, because WS2 is gradually oxidized into WO3 and therefore loses its lubrication ability.
KeywordWS2 Self-lubricating composites coating Frictional wear Temperature
Indexed BySCI ; SCIE
Funding ProjectInternational Science and Technology Cooperation Program of China[2015DFR51090] ; Supporting Program of Gansu Province[1604WKCA008]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000500992700009
EI Accession Number20184706123271
EI KeywordsComposite coatings
EI Classification Number539.3.1 Electroplating - 641.1 Thermodynamics - 702 Electric Batteries and Fuel Cells - 801.4.1 Electrochemistry - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 813.2 Coating Materials - 931 Classical Physics ; Quantum Theory ; Relativity - 951 Materials Science
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorLi, Wen-Sheng
Affiliation1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China;
2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
First Author AffilicationColl Mat Sci & Engn
Corresponding Author AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
First Signature AffilicationColl Mat Sci & Engn
Recommended Citation
GB/T 7714
Cui, Shuai,Li, Wen-Sheng,He, Ling,et al. Tribological behavior of a Ni-WS2 composite coating across wide temperature ranges[J]. RARE METALS,2019,38(11):1078-1085.
APA Cui, Shuai.,Li, Wen-Sheng.,He, Ling.,Feng, Li.,An, Guo-Sheng.,...&Hu, Chun-Xia.(2019).Tribological behavior of a Ni-WS2 composite coating across wide temperature ranges.RARE METALS,38(11),1078-1085.
MLA Cui, Shuai,et al."Tribological behavior of a Ni-WS2 composite coating across wide temperature ranges".RARE METALS 38.11(2019):1078-1085.
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