Fretting and wear behaviors of Ni/nano-WC composite coatings in dry and wet conditions - Archive ouverte HAL Access content directly
Journal Articles Materials & Design Year : 2015

Fretting and wear behaviors of Ni/nano-WC composite coatings in dry and wet conditions

(1) , (1) , (2, 1) , (3) , (4) , (5) , (2)
1
2
3
4
5

Abstract

The fretting and wear behaviors of Ni/nano-WC composite coatings were studied by considering the effect of fretting frequency of 1 Hz during 10,000 cycles, at different applied loads in dry or wet conditions. The studies were performed on a ball-on-disk tribometer and the results were compared with pure Ni coating. The nanohardness of pure Ni and Ni/nano-WC composite coatings was tested by nanoindentation technique. To evaluate the wet wear (tribocorrosion) behavior the open circuit potential (OCP) was measured before, during and after the fretting tests at room temperature in the solution that simulates the primary water circuit of Pressurized Water Reactors (PWRs). The results show that Ni/nano-WC composite coatings exhibited a low friction coefficient, high nanohardness and wear resistance compared with pure Ni coatings under similar experimental conditions. Ni/nano-WC composite coatings were obtained on stainless steel support by electrochemical codeposition of nano-sized WC particles (diameter size of ∼60 nm) with nickel, from a standard nickel Watts plating bath. The surface morphology and the composition of the coatings were characterized by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDX) respectively.
Not file

Dates and versions

hal-01237315 , version 1 (03-12-2015)

Identifiers

Cite

Lidia Benea, Sorin-Bogdan Başa, Eliza Dănăilă, Nadège Caron, Olivier Raquet, et al.. Fretting and wear behaviors of Ni/nano-WC composite coatings in dry and wet conditions. Materials & Design, 2015, 65, pp.550 - 558. ⟨10.1016/j.matdes.2014.09.050⟩. ⟨hal-01237315⟩
136 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More