Paper Title:

Tribological Behaviors of Nanocrystalline Nickel Coatings under Lubricated Conditions

Periodical Advanced Materials Research (Volumes 291 - 294)
Main Theme Materials Processing Technology
Edited by Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
Pages 1458-1461
DOI 10.4028/www.scientific.net/AMR.291-294.1458
Citation Yan Qiu Xia et al., 2011, Advanced Materials Research, 291-294, 1458
Online since July, 2011
Authors Yan Qiu Xia, Xin Feng
Keywords Friction and Wear, Ionic Liquid (IL), Nnanocrystalline Nickel Coatings
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Abstract

In this paper, nickel coatings (on phosphor bronze substrates) were prepared using pulse electrodeposition method. The friction and wear behaviors of nanocrystalline nickel coating compared with coarse-grained nickel coating against AISI 52100 steel were investigated using l-butyl-3-octylimidazolium tetrafluoroborate ionic liquid and perfluoropolyether as a reference lubricant on reciprocating ball-on-flat UMT-2MT sliding tester. The morphologies of the worn surfaces were observed using a scanning electron microscope. The chemical states of several typical elements on the worn surfaces were examined by means of X-ray photoelectron spectroscopy. The results indicated that NC nickel coatings have better tribological properties than that of coarse-grained nickel coatings under lubricated conditions. This was partly attributed to the high hardness of the NC nickel coating and L-B408 ionic liquid formed tribochemical reaction films under NC nickel coatings.