Re: [MW:31756] Facing crack in during overlay welding of Stellite 12 on Duplex material

Stellite12 deposits are prone to cracking due to local residual stress and limited ductility.

Thus, preheat has to be applies in order to minimise this susceptibility.

Sincerely,

David Harvey, 20 11 2020.

D Harvey, Director & Welding Metallurgist,
Eclipse Welding Metallurgy & Associates,
dwh@btinternet.com
07768 004701
ONC, HNC, LIM, BSc, PhD.
Gas Turbine Industries: Civil, Military, Industrial, Power & Marine.

Memberships: AWS, AWD, ASM, TWI, IOM3,