Whig wrote on Dec 5^th, 2019 at 7:50pm:

Is that more likely to happen on chrome plated metal or nickel plated?

Not sure which is worse, also not sure if it is an issue with case hardened steel with a very soft core. In hard steels I am not sure if you see any indications before the catastrophic failure. The few times I had a heat treated part plated I made the plater very aware of it and had no issues.
Forgot to say yours was nicely done, did not see any glaring peeling, not even minor stuff.

Thirty years ago we made heat treated screws for open hole logging of oil wells. A customer brought up the issue of H2S cracking in the steel, I called a metalurgist at Carpenter and he told me to temper the screws at 1100F degrees. I did that before assembling the screws and no customer complained afterwards.
A 30 minute internet and Wikipedia research would make you more of an expert on the subject than me.