Improvement of tribological performance by micro-arc oxidation treatment on selective laser melting Ti6Al4V alloy

被引：23

作者：

Yan, Xingchen ^{[1
,2
,3
,4
]}

Chen, Chaoyue ^{[5
,6
]}

Bolof, Rodolphe ^{[4
]}

Ma, Wenyou ^{[1
,2
,3
]}

Deng, Chunming ^{[1
,2
,3
]}

Wang, Jiang ^{[5
]}

Ren, Zhongming ^{[5
]}

Liao, Hanlin ^{[4
,6
]}

Liu, Min ^{[1
,2
,3
]}

机构：

[1] Natl Engn Lab Modern Mat Surface Engn Technol, Guangzhou 510651, Guangdong, Peoples R China

[2] Key Lab Guangdong Modern Surface Engn Technol, Guangzhou 510651, Guangdong, Peoples R China

[3] Guangdong Inst New Mat, Guangzhou 510651, Guangdong, Peoples R China

[4] Univ Bourgogne Franche Comte, UTBM, CNRS, ICB UMR 6303, F-90010 Belfort, France

[5] Shanghai Univ, Sch Mat Sci & Engn, State Key Lab Adv Special Steels, Shanghai 200444, Peoples R China

[6] Shanghai Univ, Sino European Sch Technol, Shanghai 200444, Peoples R China

来源：

MATERIALS RESEARCH EXPRESS | 2019年 / 6卷 / 09期

基金：

中国国家自然科学基金;

关键词：

selective laser melting; Ti6Al4V alloys; micro arc oxidation; tribological performance; PLASMA ELECTROLYTIC OXIDATION; TI-6AL-4V ALLOY; MECHANICAL-PROPERTIES; CERAMIC COATINGS; METALLIC COMPONENTS; MICROSTRUCTURE; CORROSION; BEHAVIOR; TRIBOCORROSION; WEAR;

D O I：

10.1088/2053-1591/ab2a47

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The technique of Selective Laser Melting (SLM) has been widely applied as an additive manufacturing method in fabricating the Ti6Al4V parts. However, its relatively low wear resistance restricts the application of the SLM titanium alloy. In this paper, a promising way (Micro-arc Oxidation, MAO) was proposed to improve its wear resistance by forming a dense oxidized coating onto the SLM Ti6Al4V alloy surface. The dry sliding wear test and microhardness measurement were used to characterize the mechanical performance. It is found that with increasing treatment duration, coating growth was slowing down accompanied gradually roughening appearance. The oxidized layer was composed of gamma-alumina and TiAl2O5. Meanwhile, a significant improvement of tribology performance was found on the Ti6Al4V alloy by employing the MAO treatment. It can be believed that the MAO treatment can improve the reliability of the bearing surfaces on SLM Ti6Al4V parts.

引用

页数：12

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