| Autor: |
Li Qun Zhu, Ying Xu Li, Zhen Xue, Yan Bin Du |
| Rok vydání: |
2007 |
| Předmět: |
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| Zdroj: |
Materials Science Forum. :1805-1808 |
| ISSN: |
1662-9752 |
| DOI: |
10.4028/www.scientific.net/msf.546-549.1805 |
| Popis: |
A tri-layer amorphous Ni-P alloy coating was prepared in the same bath by changing the temperatures and currents, followed by heat treament. We studied the behavior of corrosion-resistance of the tri-layer coating before and after heat-treatment at 360°C for different time in the 5% NaCl solution. The result showed that: the tri-layer amorphous Ni-P coating has the excellent performance of anti-corrosion compare with single electroless or electrodeposited Ni-P amorphous coating. The performance of anti-corrosion of the coating was improved by controlling the coating’s structure and the role of electrochemical protection. After being heat-treated at 360°C for 1 hour ,the coating’s structure changed from amorphous to crystalloid and the corrosion resistance of the heat-treated coatings was higher than as-plated tri-layer Ni-P coating. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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