Method of making a structure immune against stress corrosion cra

Details Method of making a structure immune against stress corrosion cra Method of making a structure immune against stress corrosion cra

1978-08-14

1980-11-18

Husar, Francis S.

Metal fusion bonding

Process

With removing or reshaping of filler material or flash after...

219137R, 228168, 228226, B23K 3102

Patent

active

042341191

ABSTRACT:
A groove is provided on the side of a metallic structure opposite to the side thereof which is exposed to a corrosive atmosphere, and the groove is subjected to build-up welding while cooling with a liquid coolant, whereby any stress corrosion cracking which otherwise occurs on the side of the structure to be exposed to the corrosive atmosphere can be prevented. Especially, this method of manufacture is appropriate for the repair welding of a butt-welded pipe of austenite type stainless steel, and it is effective to perfectly prevent the stress corrosion cracking of the pipe prone to be caused by reactor water during use in a nuclear reactor.

REFERENCES:
patent: 2819517 (1958-01-01), Pursell
patent: 3849871 (1974-11-01), Kaunitz
patent: 4049186 (1977-09-01), Hanneman et al.
patent: 4079224 (1978-03-01), Haga et al.

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