| RAO Mosong,YANG Wei,WEI Mingzhu,CHENG Zhaohui,JIN Yaohua.Effect of Pulse Frequency on the Wear and Corrosion Resistance of Black Micro Arc Oxidation Coatings on Magnesium Lithium Alloy in Marine Environment[J],53(18):116-125 |
| Effect of Pulse Frequency on the Wear and Corrosion Resistance of Black Micro Arc Oxidation Coatings on Magnesium Lithium Alloy in Marine Environment |
| Received:September 14, 2023 Revised:January 06, 2024 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2024.18.009 |
| KeyWord:magnesium lithium alloy micro arc oxidation black marine environment wear resistance corrosion resistance |
| Author | Institution |
| RAO Mosong |
School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an , China |
| YANG Wei |
School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an , China |
| WEI Mingzhu |
School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an , China |
| CHENG Zhaohui |
School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an , China |
| JIN Yaohua |
School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an , China |
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| Abstract: |
| Magnesium lithium alloy is a metal structural material with excellent comprehensive performance, which has broad application prospects in fields such as shipborne aircraft. However, the poor wear and corrosion resistance of magnesium lithium alloy in marine environment greatly limits its application and promotion. In addition, the engineering application of magnesium lithium alloy also needs to meet the requirements of decoration, absorption or shielding of stray light. A black micro arc oxidation coating was prepared by adding two colored salts, copper pyrophosphate (Cu2P2O7) and cobalt sulfate (CoSO4) to the electrolyte. The resulting coating exhibited numerous defects such as microcracks. The microstructure and phase composition of the micro arc oxidation (MAO) coating were improved by adjusting the pulse frequency to enhance its wear and corrosion resistance in marine environment. |
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