Tribological Behavior of HVOF Cermet Coatings as Alternative to Cr-Plating in Artificial Salt-Fog Atmosphere

被引：0

作者：

Zhang Jifu ^{[1
]}

Liu Min ^{[1
]}

Zhou Kesong ^{[1
]}

Deng Changguang ^{[1
]}

Deng Chunming ^{[1
]}

Song Jinbing ^{[1
]}

机构：

[1] Guangdong Inst New Mat, Natl Engn Lab Modern Mat Surface Engn Technol, Key Lab Guangdong Modern Surface Engn Technol, Guangzhou 510650, Guangdong, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2016年 / 45卷 / 10期

基金：

中国国家自然科学基金;

关键词：

cermets coating; tribological behavior; salt-fog atmosphere; wear mechanism; THERMAL SPRAY COATINGS; WC-CO HARDMETALS; CORROSION-RESISTANCE; HARD CHROMIUM; BOILER TUBE; WEAR; GAS; MICROSTRUCTURE; PERFORMANCE; CR3C2-NICR;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two kinds of cermet coatings (WC-10Co4Cr and Cr3C2-NiCr) were prepared by high velocity oxygen fuel (HVOF) to enhance the wear-and corrosion-resistance of key components in aviation and marine fields. Their tribology behavior in salt-fog condition were studied by a reconstructive friction testing machine equipped with artificial salt-fog spraying apparatus. Traditional chrome plating (Cr-plating) was also researched for comparison. The results show that different coating display different wear-mechanisms. Cr-plating exhibits mainly adhesive-wear mechanism, however, the WC-10Co4Cr coatings displays mainly abrasive-wear mechanism, while the Cr3C2-NiCr coating shows both mechanisms of adhesive-wear and abrasive-wear. Salt-fog atmosphere has important effects on tribological behavior of the coatings, which reduces the friction coefficient and corrosion loss of the coatings, resulting in the wear-mechanism of WC-10Co4Cr coating change to oxidation/corrosion wear.

引用

页码：2492 / 2497

页数：6

共 17 条

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