Electrodeposition and tribological properties of Ni–SrSO 4 composite coatings

Ni–SrSO 4 composite coatings were electrodeposited on superalloy Inconel 718 from a Watts electrolyte containing a SrSO 4 suspension. Ni–SrSO 4 coatings were investigated by scanning electron microscope, microhardness tester, and friction and wear tester in sliding against a bearing steel ball under...

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Bibliographic Details
Published inApplied surface science Vol. 255; no. 7; pp. 4316 - 4321
Main Authors Liang, Xue-Song, Ouyang, Jia-Hu, Li, Yu-Feng, Wang, Ya-Ming
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.01.2009
Subjects
Composite coating
Electrodeposition
Friction
Ni–SrSO 4
Wear
Electrodeposition
Ni–SrSO 4
Friction
Composite coating
Wear
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Summary:Ni–SrSO 4 composite coatings were electrodeposited on superalloy Inconel 718 from a Watts electrolyte containing a SrSO 4 suspension. Ni–SrSO 4 coatings were investigated by scanning electron microscope, microhardness tester, and friction and wear tester in sliding against a bearing steel ball under unlubricated condition. The incorporation of SrSO 4 into Ni matrix increases the microhardness of electrodeposited coatings. Ni–SrSO 4 composite coating exhibits a distinctly low friction coefficient and a small wear rate as contrasted with pure Ni coating and the substrate. The effect of SrSO 4 particles on microstructure and tribological properties of Ni–SrSO 4 composite coatings is discussed.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2008.11.043