Summary for hard chrome bath contamination Discussion
The thread asks about a DOE on hard chrome bath corrosion performance and how to introduce metal contamination, specifically free iron and/or copper, without adding much other solid material. Jared Sponzilli says he is considering an iron or copper chromate as a possible source. No answers are shown in the excerpt, so the page does not provide a tested recommendation or a consensus method. The practical takeaway from the question itself is that the goal is to simulate metal contamination in a controlled way while minimizing added solids, but the thread excerpt does not confirm whether chromates are suitable or how to dose them. Because no respondent advice is included, there are no named expert conclusions to attribute beyond Jared’s stated experimental intent.
Q. We’re running a DOE on the effect of various plating / bath parameters on corrosion performance of a hard chrome bath. One of the variables we’d like to investigate is metal contamination. Does anyone have a suggestion for an efficient way to add free iron and or copper to the bath? I’m thinking of a iron or copper chromate maybe? I’d prefer not adding a lot of other solids to the tank. All input is appreciated!
Jared Sponzilli
– Illinois
December 10, 2024