| Autor: |
YANG Kun, SUN Xiaolan, HAN Dongning, ZHAO Dong, LUO Jian |
| Jazyk: |
čínština |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Cailiao Baohu, Vol 55, Iss 11, Pp 124-127 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
1001-1560 |
| DOI: |
10.16577/j.issn.1001-1560.2022.0319 |
| Popis: |
The anodic oxidation treatment on aluminum alloy using HEDP (hydroxyethylidene diphosphonic acid) as the electrolyte additive could significantly improve the corrosion resistance of the parts and be helpful for their use in marine conditions. The optimum process parameters of HEDP anodic oxidation were determined by orthogonal test and single factor test: a HEDP concentration of 0.3 mol/L, a temperature of 20～30 ℃, a current density of 0.83 A/dm2, and an oxidation time of 60 min. Moreover, the influences of various process parameters on the film microstructure were analyzed. Based on the morphology of the anodic oxide coating prepared using the optimum process parameters, the thickness of blocking layer was obtained, which was further compared with the thickness of sulfuric acid anodic blocking layer. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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