Comprehensive study on corrosion, wear and fatigue performance of low-porosity PEO coating on Mg alloy

Xiaopeng Lu; Yufei Xie; Xinyu Zhang; Jirui Ma; Lingxiong Sun; Quantong Jiang; Wojciech Simka; Dan Zhang; Baorong Hou; Fuhui Wang

Journal of Magnesium and Alloys (Apr 2025)

Comprehensive study on corrosion, wear and fatigue performance of low-porosity PEO coating on Mg alloy

Xiaopeng Lu,
Yufei Xie,
Xinyu Zhang,
Jirui Ma,
Lingxiong Sun,
Quantong Jiang,
Wojciech Simka,
Dan Zhang,
Baorong Hou,
Fuhui Wang

Affiliations

Xiaopeng Lu: Corrosion and Protection Center, Northeastern University, Shenyang, 110819, China; Corresponding authors.
Yufei Xie: Corrosion and Protection Center, Northeastern University, Shenyang, 110819, China
Xinyu Zhang: Corrosion and Protection Center, Northeastern University, Shenyang, 110819, China
Jirui Ma: Corrosion and Protection Center, Northeastern University, Shenyang, 110819, China
Lingxiong Sun: Corrosion and Protection Center, Northeastern University, Shenyang, 110819, China
Quantong Jiang: CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; Corresponding authors.
Wojciech Simka: Faculty of Chemistry, Silesian University of Technology, 44-100 Gliwice, Poland
Dan Zhang: Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, Liaoning, 110001, China; Corresponding authors.
Baorong Hou: CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
Fuhui Wang: Corrosion and Protection Center, Northeastern University, Shenyang, 110819, China

Journal volume & issue: Vol. 13, no. 4
pp. 1685 – 1698

Abstract

Read online

Novel neutral electrolytes were designed to substantially decrease porosity and increase barrier property of plasma electrolytic oxidation (PEO) coating on AM50 Mg surface. Presence of additives was effective in tuning coating microstructure and composition, leading to significantly enhanced corrosion and wear properties. 50% improvement in fatigue limit was detected for the optimized coating compared to conventional PEO coating. The low-porosity coating remained uncorroded after performing salt spray test for 1 month, and exposure 1 year in harsh South China Sea environment. This can be new strategy to evaluate coating lifespan and promote wide range of applications for Mg alloy.

Published in Journal of Magnesium and Alloys

ISSN: 2213-9567 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/journal-of-magnesium-and-alloys/

About the journal

Abstract

Keywords