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CrN stripping by chemicals

I want to use chemicals to strip the CrN coating on the stainless steel by PVD.I tried chlorhydric acid, which can strip CrN but not completely.And I tried alkali and KMnO4,still can not strip the CrN completely.Can anybody give me some advice?

Thanks a lot.

Wayne Xue
- SHENZHEN, CHINA
2007

2007

Ni Hao Wayne,
Try a hot mix of H2O2 + NaOH. Zai jian!
Han yu xuesheng Guillermo Marrufo-Mexico

Guillermo Marrufo
Monterrey, NL, Mexico

Dear Guillermo Marrufo

ni hao!

Your Chinese is good. Welcome you to come China someday.

Thank you for your advice. I have tried it but didn't get a good result.Maybe because of the different parameter.Whatever, I will do more work.

Thanks again and hope your Chinese will be better and better.

Zai jian.

Wayne Xue
- SHENZHEN, CHINA
2007

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