cad plating 17-4 ph - Hardness effects
cad plating 17-4 ph - Hardness effects
(OP)
Have: 17-4ph 1/4 dia. pins, Age hardened to HRC40 Min.
Parts subsequently CAD plated type II, CLass2 IAW AMS-QQ-P-416. Hydrogen embrittlement relief carried out for a minimum of only 4 hrs IAW 3.4.1 of NAS1332 ILO 8hrs as spec'd by ...P416. Parts were HRC40 min prior to Age harden.
As returned from plater, HRC now down around 38HRC, now below minimum. Would the hydrogen embrittlement relief cause this? (Carried out at
375+/- 25 deg F. Any thoughts? along these lines - or others?)
Parts subsequently CAD plated type II, CLass2 IAW AMS-QQ-P-416. Hydrogen embrittlement relief carried out for a minimum of only 4 hrs IAW 3.4.1 of NAS1332 ILO 8hrs as spec'd by ...P416. Parts were HRC40 min prior to Age harden.
As returned from plater, HRC now down around 38HRC, now below minimum. Would the hydrogen embrittlement relief cause this? (Carried out at
375+/- 25 deg F. Any thoughts? along these lines - or others?)





RE: cad plating 17-4 ph - Hardness effects
RE: cad plating 17-4 ph - Hardness effects
RE: cad plating 17-4 ph - Hardness effects