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Are the zinc alloys sensitive to hydrogen embrittlement during nickel plating





To increase the hardness of our component,they are plated with nickel. Until now, we use an electrochemical nickel plating. Now, we change the surface treatment and now we use chemical nickel plating. A problem appears: our zinc alloy casting parts show "blisters" after surface treatment. Could it be hydrogen embrittlement? Are the zinc alloys sensitive to hydrogen embrittlement? Thanks for your help

Catherine Spessel
automotive component - Nevers, Bourgogne, France
2004


Catherine,

The blisters are usually due to incorrect pretreatment . Check your cleaning and activation cycle. No, Zinc alloys do not suffer from Hydrogen Embrittlement.

Regards,

asif_nurie
Asif Nurie [deceased]
- New Delhi, India
With deep regret we sadly advise that Asif passed away on Jan 24, 2016
2004




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