Method for preventing disbonding of weld-cladding

Details Method for preventing disbonding of weld-cladding Method for preventing disbonding of weld-cladding

1984-08-21

1986-01-14

Skiff, Peter K.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

208154, C21D 178

Patent

active

045644020

ABSTRACT:
Disclosed is a method for preventing hydrogen-induced disbonding of austenitic stainless steel cladding, which is made on a low alloy steel, in a reactor vessel which has been used in a high-temperature and high-pressure hydrogen atmosphere. The clad steel is cooled from its operating temperature to a temperature which is not lower than 100.degree. C. Then, the clad steel is maintained at a temperature between said temperature which is not lower than 100.degree. C. and a postweld heat treatment so as to effect hydrogen degassing treatment. Thereafter, the clad steel is further cooled.

REFERENCES:
patent: 4224360 (1980-09-01), Ohnishi et al.

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