Cobalt alloy for build-up welding having improved resistance to

Details Cobalt alloy for build-up welding having improved resistance to Cobalt alloy for build-up welding having improved resistance to

1984-12-07

1987-04-21

Dean, R.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

420440, B32B 1501

Patent

active

046596321

ABSTRACT:
A composite article comprising a metal substrate having a cobalt-base alloy built-up surface portion consisting essentially of a cobalt-base alloy welding metal which has been deposited on said substrate by an overlay welding process using a cobalt-base welding metal which consists essentially of 1.1 to 3.0% Si, 0.2 to 0.5% C, 25.0 to 30.0% Cr, 0.1 to 1.0% W, 0.2 to 3.0% Fe, 0.4 to 6.0% Mo, 0.1 to 2.0% MN, 1.0 to 4.0% Ni, the balance being Co and incidental impurities, the percentage being on a weight basis. The built-up surface portion has high resistance to wear and to weld cracking.

REFERENCES:
patent: 3237441 (1966-03-01), Eberle

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