The Effects of Electrolyte Composition on Formation and Properties of Micro-Arc Oxidation Layer of 6082-T6 Al Alloy

IF 1.1 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-02-18 DOI:10.1134/S2070205124702022

Q. Li, J. Shang

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Abstract

Micro-arc oxidation layer (MAO) was prepared on 6082-T6 Al alloy. The effects of sodium silicate, sodium phosphate, sodium molybdate and sodium tungstate electrolyte on the formation of MAO layer were compared under constant current and constant voltage mode. The hardness, wear resistance and corrosion resistance of MAO layer prepared under different electrolysis systems were tested by Vickers hardness tester, friction and wear tester, electrochemical workstation and natural immersion corrosion test. The experimental results show that: (1) In the constant current mode, the MAO layer prepared by the sodium silicate system has the highest hardness, the best wear resistance and corrosion resistance; (2) In the constant pressure mode, the MAO layer prepared by sodium molybdate system has the highest hardness, the best wear resistance and corrosion resistance. Based on the results of this experimental study, the formation mechanism of MAO layer is further explained, which will lay a solid foundation for the later study of MAO layer.

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来源期刊

Protection of Metals and Physical Chemistry of Surfaces 工程技术-冶金工程

CiteScore

1.90

自引率

18.20%

发文量

审稿时长

4-8 weeks

期刊介绍： Protection of Metals and Physical Chemistry of Surfaces is an international peer reviewed journal that publishes articles covering all aspects of the physical chemistry of materials and interfaces in various environments. The journal covers all related problems of modern physical chemistry and materials science, including: physicochemical processes at interfaces; adsorption phenomena; complexing from molecular and supramolecular structures at the interfaces to new substances, materials and coatings; nanoscale and nanostructured materials and coatings, composed and dispersed materials; physicochemical problems of corrosion, degradation and protection; investigation methods for surface and interface systems, processes, structures, materials and coatings. No principe restrictions exist related systems, types of processes, methods of control and study. The journal welcomes conceptual, theoretical, experimental, methodological, instrumental, environmental, and all other possible studies.