Improvement in tribological behavior of thermal spray Cr2O3 and Cr3C2-NiCr coatings by ultrasonic nanocrystal surface modification

被引：9

作者：

Amanov, Auezhan ^{[1
,2
]}

Berkebile, Stephen P. ^{[3
]}

机构：

[1] Sun Moon Univ, Dept Mech Engn, Asan, South Korea

[2] Sun Moon Univ, Dept Fus Sci & Technol, Asan, South Korea

[3] US Army DEVCOM Army Res Lab, Aberdeen Proving Ground, MD 21005 USA

来源：

MATERIALS LETTERS | 2022年 / 314卷

关键词：

Cr-based coatings; Roughness; Hardness; Grain size; Tribology; Surface modification; WEAR; TEMPERATURE;

D O I：

10.1016/j.matlet.2022.131919

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ultrasonic nanocrystal surface modification was applied to Cr2O3 and Cr3C2-NiCr coatings. The aim of this study is to evaluate the effect of UNSM on the tribological behavior of the coatings. X-ray diffraction patterns and transmission electron microscopy images of the UNSM-treated coatings demonstrated a grain size refinement, which tended to increase the hardness of the coatings. Fuel-lubricated tribological test results revealed that the UNSM reduced coefficient of friction and specific wear rate of the coatings.

引用

页数：4

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