Role of graphene additive on wear and electrochemical corrosion behaviour of plasma electrolytic oxidation (PEO) coatings on Mg-MWCNT nanocomposite

被引：32

作者：

Aydin, Fatih ^{[1
]}

Ayday, Aysun ^{[2
]}

Turan, M. Emre ^{[1
]}

Zengin, Huseyin ^{[1
]}

机构：

[1] Karabuk Univ, Dept Met & Mat Engn, Karabuk, Turkey

[2] Sakarya Univ, Dept Met & Mat Engn, Serdivan, Turkey

来源：

SURFACE ENGINEERING | 2020年 / 36卷 / 08期

关键词：

Mg; MWCNT; nanocomposite; PEO; corrosion; wear; MAGNESIUM ALLOYS; CARBON NANOTUBES; OXIDE COATINGS; PERFORMANCE; MICROSTRUCTURE; PARTICLES; COMPOSITE;

D O I：

10.1080/02670844.2019.1689640

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, wear and electrochemical corrosion behaviour of as-cast magnesium (Mg)/multiwall carbon nanotube (MWCNT) and plasma electrolytic oxidation (PEO) coated Mg/MWCNT samples were evaluated by dry sliding wear tests and potentiodynamic corrosion tests, respectively. In this respect, Mg/MWCNT composite was manufactured by stir casting route. X-ray diffraction (XRD) analysis shows that the presence of Mg, MgO and Mg2SiO4 phases for coated samples. The corrosion rate of the coated samples is about 1.6 times lower than that of un-coated Mg-MWCNT composite. From the wear tests, it is concluded that PEO coating leads to significant improvement in wear resistance in comparison with un-coated Mg/MWCNT composite. It is observed that wear mechanisms are abrasion and oxidation.

引用

页码：791 / 799

页数：9

共 36 条

[1] Incorporation of zirconia particles into coatings formed on magnesium by plasma electrolytic oxidation [J].