Using a corrosion proof austenitic alloy for high load weldable

Details Using a corrosion proof austenitic alloy for high load weldable Using a corrosion proof austenitic alloy for high load weldable

1985-02-22

1986-04-22

Stallard, Wayland

Metal treatment

Compositions

Heat treating

148 115N, 148 115R, 148 123, 148 31, 148 38, C21D 602, C21D 702, C22C 3848

Patent

active

045840318

ABSTRACT:
Corrosionproof austenitic steel is made and used by providing a particular composition and cold working and recrystallize annealling the alloy to obtain an ultrafine grain structure with average linear intercept length of grains below 10 micrometers and an increased 0.2% offset yield strength at room temperature and higher. Parts thus made are welded together using a high strength nitrogen containing corrosion resistant steel or nickel alloy as filler and the ultrafine alloy as parent metal which will not fracture in the seam transition region of the welding.

REFERENCES:
patent: 3129120 (1964-04-01), Smith et al.
patent: 3284250 (1966-11-01), Yeo et al.
patent: 4168190 (1979-09-01), Eguchi et al.

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