No passwords, no registration, no paywalls, no popups, no AI

As an Amazon Associate & eBay Partner we earn from affil links

finishing.com -- The Home Page of the Finishing Industry

Search our quarter-million Q&As

Home of the finishing HOTLINE since 1989

-----

Hydrogen dissolved in copper alloy

In an electroplating process, we expose a high-copper alloy (85% copper) to a HCl bath. A subsequent process is sensitive to any dissolved hydrogen released from the copper alloy. Up until recently, we have plated copper alloys (CDA 18200) without incident. In the last two lots, we have had significant re-work due to dissolved hydrogen. We suspect a change (subtle?) in the copper alloy.

What alloying elements would effect the dissolved hydrogen content of copper alloys? Or, which elements would result in a sharp increase in hydrogen release during a subsequent heating process?

Lyle Branagan
Pioneer Motor Bearing Company - Kings Mountain, North Carolina

I experienced sever problem with Phosphor bronze. A fraction of a percent Phosphorus caused lots of hydrogen embrittlement. I got around using asymmetric a.C. for plating.

Yashawant V.Deval
electroplating shop - Pune, Maharashtra, India

Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.

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: