Preparation method of magnesium alloy surface micro-arc oxidation/intelligent slow-release structure integrated composite coating
The invention discloses a preparation method of a magnesium alloy surface micro-arc oxidation/intelligent slow-release structure integrated composite coating, and belongs to the technical field of metal surface treatment. The method comprises the steps that a layer of compact micro-arc oxidation fil...
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Main Authors | , , , , |
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Format | Patent |
Language | Chinese English |
Published |
30.11.2018
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a preparation method of a magnesium alloy surface micro-arc oxidation/intelligent slow-release structure integrated composite coating, and belongs to the technical field of metal surface treatment. The method comprises the steps that a layer of compact micro-arc oxidation film framework structure is formed on the surface of magnesium alloy, then, a magnesium alloy sample with the micro-arc oxidation film (MAO) framework structure is immersed into modified hydrogel, and after the modified hydrogel is loaded with a corrosion inhibitor, the micro-arc oxidation/intelligentslow-release structure integrated composite coating is formed on the surface of the magnesium alloy. The prepared MAO film metallurgically combined with a matrix restrains the stripping effect of damage boundary position matrix filiform corrosion on the coating, the hydrogel in microholes forms a micro-nano slow-release structure with the reliable mechanics guarantee and responses to the micro-area corrosion in a long-act |
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Bibliography: | Application Number: CN201810875966 |