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Investigation of corrosion and wear resistance of PEO coated D16T aluminium alloys in the marine tropical climate conditions
Materials Chemistry and Physics Số , năm 2022 (Tập 290, trang -)
ISSN: 2540584
ISSN: 2540584
DOI:
Tài liệu thuộc danh mục:
Article
English
Từ khóa: Alumina; Aluminum alloys; Aluminum coatings; Aluminum corrosion; Aluminum oxide; Cobalt alloys; Cobalt compounds; Corrosion resistance; Corrosion resistant coatings; Electrodes; Electrolysis; Erosion; Morphology; Oxidation; Silicon oxides; Storms; Wear resistance; Climate condition; Corrosion and wear resistance; Density ratio; Electrolyte solutions; Electrolytics; I-cathodes; Marine tropical climate; Morphology structures; Plasma electrolytic oxidation; Property; Electrolytes
Tóm tắt tiếng anh
The effect of critical technical parameters such as the current density ratio between anode and cathode (ianode/icathode) and composition of the electrolyte solution on the morphology, structure, phase formation, hardness, abrasion, and corrosion resistance of D16T aluminum alloy with plasma-electrolytic oxidized (PEO) coatings was studied. The research results show that the properties and morphology of the obtained coatings are different when the technological regime is changed, and substances are added to the basic electrolyte solution. Aluminum oxide, silicon oxide, cobalt oxide, and manganese oxide are the critical components of the coatings, which are split into an outside porous technical layer and an interior denser working layer. The coating obtained from the base electrolyte with Co(OH)2 has the best properties, morphology, and the highest corrosion resistance. � 2022 Elsevier B.V.
