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| The Action of the Forms of P Element on the Process of the Microarc Oxidation |
| Jianzhong Li |
| 东北大学材料与冶金学院冶金物理化学研究所 |
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Abstract Under the same conditions, the Al-Mg alloys surface treatment was performed by the microarc oxidation with different components of electrolytes. The thickness of the microarc oxidation coating was measured by the thickness gauge. Surface morphology and composition of the coating were analyzed by scanning electron microscopy(SEM) coupling with energy dispersive X-ray(EDS); the adhesion between the oxidation coating and the substrate was evaluated by means of the file. The results showed that the high stoichiometry of the phosphorus element increased the growth rte and the compactness of the oxidation coating, decreased its porosity, boosted up the adhesion between the oxidation coating and the substrate, and influenced the composition of the microarc oxidation coating. At the same time, the molecule polymerization state had an effect on the growth rate and the porosity of the coating, on which the linear polymer had a more useful impact than the cyclic polymer did.
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Received: 24 November 2003
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Corresponding Authors:
Jianzhong Li
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