Title: Investigation of erosion resistance property of WC-Co coatings

Authors: Yi Xie; Xiaohan Pei; Songbo Wei

Addresses: PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China ' PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China ' PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China

Abstract: In this study, the erosion resistance property of WC-Co coatings comparing with cast iron, 42CrMo4 steel and aluminium alloy was investigated. The abrasive slurry wear method was used for erosion wear experiments. The experimental results showed that the aluminium alloys with WC-Co coatings had the best erosion resistance ability among the four materials. According to the analysis results of scanning electron microscopy (SEM) micrographs, the excellent erosion resistance ability of WC coating was caused by the high strength of WC grains.

Keywords: WC-Co coatings; tungsten carbide cobalt; downhole tools; erosion wear; mass loss; erosion resistance; wear resistance; abrasive slurry wear; aluminium alloys; cast iron; steel.

DOI: 10.1504/IJSURFSE.2016.077536

International Journal of Surface Science and Engineering, 2016 Vol.10 No.4, pp.365 - 374

Received: 08 May 2015
Accepted: 30 May 2015

Published online: 05 Jul 2016 *

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