Tribological behavior of plasma electrolytic oxidation coating on magnesium alloy with oil lubrication at elevated temperatures

被引：46

作者：

Guo, Jie ^{[1
,2
]}

Wang, Liping ^{[1
]}

Liang, J. ^{[1
]}

Xue, Qunji ^{[1
]}

Yan, Fengyuan ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 481卷 / 1-2期

关键词：

Magnesium alloy; Plasma electrolytic oxidation; Tribological properties; Oil lubrication; FRETTING WEAR BEHAVIOR; MICROARC OXIDATION; CORROSION-RESISTANCE; COMPOSITE COATINGS; AZ91D; ADDITIVES; FRICTION; FLUORIDE; FILMS;

D O I：

10.1016/j.jallcom.2009.03.147

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The ceramic coating with micro-pores structure on AM60B magnesium alloy was prepared in silicate electrolyte by plasma electrolytic oxidation (PEO) method. The PEO coating is mainly composed of percales MgO and forsterite Mg2SiO4 phases. The tribological performance of the PEO coatings and uncoated magnesium alloys under oil-lubricated wear conditions at different loads and elevated temperatures (80-120 degrees C) was comparatively investigated. Results shown that the PEO coating exhibited significantly higher wear resistance and relatively lower friction coefficient when compared with Mg alloy under oil-lubricated conditions. The excellent tribological performance can be attributed to the high hardness and micro-pores structure feature of the PEO coating. Such high-performance PEO coating on magnesium alloys under oil-lubricated conditions could be applied as attractive advanced material for a wide range of automobile engine applications. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：903 / 909

页数：7

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