Method for bonding dual-phase stainless steel

Details Method for bonding dual-phase stainless steel Method for bonding dual-phase stainless steel

1998-07-17

2000-02-15

Heinrich, Samuel M.

Metal fusion bonding

Process

Diffusion type

228203, 228231, 228232, 22826241, 148534, 2852881, B23K 2000, B23K 2022, B23K 2024

Patent

active

060242760

ABSTRACT:
The method provides a diffusion-bonding of dual-phase stainless steel material having excellent strength and corrosion. The method includes: cold-working a material to be bonded so as to enhance the proof stress; inserting into the bonding portion an insert material; applying pressure thereto while performing shielding by mixed nitrogen/argon gas; heating the restricted bonding portion; cooling at a restricted rate; so as to form a bonded portion having the ferritic phase percentage of 30-70% by volume.

REFERENCES:
patent: 5683822 (1997-11-01), Hasegawa et al.

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