Accidental etching of cobalt based alloy while chrome plating
July 1, 2010
Is it possible that a cobalt based alloy would be selectively etched when hard chrome plating an adjacent area?
Gregory Hooper Engineer - Ingleburn-NSW-Australia
July 8, 2010
Yes it is. Normally it is because some solution got under the masking and was not removed during the rinse cycle. The long chrome plating time at temperature will allow an aggressive attack on the metal not being plated.
My experience was a cyanide cleaner or the acid etch.
James Watts - Navarre, Florida
finishing.com is made possible by ... this text gets replaced with bannerText
Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.
If you are seeking a product or service related to metal finishing, please check these Directories: