| WEI Jun-sheng,TANG Zi-long,SONG Shi_zhe.Coloring of 304 Stainless Steel in NaOH by Modularized Potential[J],36(5):43-45,87 |
| Coloring of 304 Stainless Steel in NaOH by Modularized Potential |
| Received:July 03, 2007 Revised:October 10, 2007 |
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| DOI： |
| KeyWord:Electrochemical coloring Stainless steel Potential scans Chemical stability |
| Author | Institution |
| WEI Jun-sheng |
School of Materials, Tianjin University, Tianjin , China |
| TANG Zi-long |
School of Materials, Tianjin University, Tianjin , China |
| SONG Shi_zhe |
1. School of Materials, Tianjin University, Tianjin , China;2. State Key Laboratory for Corrosion and Protection, Shenyang , China |
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| Abstract: |
| An environmentally friendly approach was proposed to color 304 stainless steel in NaOH solution wi out Cr3+ or Cr6+ using alternative potentials with the modularized amplitudes and period at room temperature. The coloring technique produces a profile of golden, purple yellow , purple , purple blue and blue. Corrosion resistance of color film was evaluated by multi electrochemical techniques. The result shows that the color film obtained with a potential amplitude of 7. 0 - 8. OV and an electrolysis time of 4 - 7 minutes has best stability and corrosion resistance in 0. Smol/L H2S04 solution. |
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