Study on the tribological behavior of micro-arc oxidized ceramic coatings on magnesium alloy surfaces

被引：0
|
作者：
Chen, F [1 ]
Zhou, H
Yao, B
Yang, YG
Lu, JX
Lu, FX
机构：
[1] Beijing Inst Petrochem Technol, Coll Mech Engn, Beijing 102617, Peoples R China
[2] Univ Sci & Technol Beijing, Beijing 100083, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2006年 / 35卷 / 05期
关键词：
magnesium alloy; microarc oxidation; tribological behavior;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A dense ceramic oxide coating with a thickness of 20 Am approximately was directly formed on the surface of AZ31 magnesium alloy through micro-arc oxidation in a electrolytic solution of Na2SiO3-Na2WO4-KOH-Na-2 EDTA so as to improve its surface property greatly in this paper. The tribological behavior of the micro-arc oxidized ceramic coatings under dry sliding against SAE52100 steel was evaluated on a ball-on-disc test rig. The AZ31 alloy is characterized by adhesion wear and scuffing under dry sliding against the steel and the results show that the micro-arc oxidated ceramic coatings experience much abated adhesion wear and scuffing under the same testing condition. The micro-arc oxidized ceramic coatings show good friction-reducing and a fair anti-wear ability in dry sliding against the steel. The phase structure and morphology of the carburizing modified layer were analyzed by using SEM and XRD.
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页码：806 / 809
页数：4
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