Stress Relief Cracking and Strain Ageing in 347H and In 740H
- Strains due to forming and welding can accelerate precipitation and increase cracking susceptibility during post-weld heat treatment (Stress Relief Cracking) or long term ageing like in service in alloys 347H and IN740H.
- IN740H is a relatively new alloy, and the variables effect PWHT cracking susceptibility are not understood in detail
Industry Sponsor: B&W, EPRI
Faculty: John DuPont
Graduate Student: Jonah Duch
Industry Contact: EPRI, Special Metals