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welding


Best Practices for Welding Critical Power Plant Systems

Innovative welding techniques can produce consistently better-quality joints. Special alloys, appropriate pre- and post-weld heat treatment, and proper weld procedures can all help prevent catastrophic failure of safety-critical systems. The…


Dissimilar-Metal Weld Is a Misnomer

Most combined cycle professionals understand that a joint between grade 91 steel and an austenitic stainless steel is considered a dissimilar-metal weld. For that reason, it requires special welding procedures.…


Welding and Fabrication Innovations Mitigate Reactor Pressure Vessel Embrittlement in Nuclear Plant Construction

New weld filler materials and fabrication processes are capable of eliminating toughness losses associated with fast-neutron irradiation of reactor pressure vessel (RPV) weldments in new nuclear power plants. This article…