Process for improving decarburization resistance of chrome-molyb

Details Process for improving decarburization resistance of chrome-molyb Process for improving decarburization resistance of chrome-molyb

1980-06-24

1982-06-15

Stallard, W.

Metal treatment

Compositions

Heat treating

148 12F, 148 123, C22F 000

Patent

active

043349374

ABSTRACT:
A process for improving decarburization resistance of chrome-molybdenum steel in sodium is provided which comprises subjecting the chrome-molybdenum steel to cold working to attain a working ratio of not less than 5%, thereby forming numerous nuclei for carbide formation in the steel material, and heat-treating the cold-worked steel to form stable, fine carbide particles. Alternatively, by subjecting the steel material to warm working at a temperature of 600.degree. to 750.degree. C., both the working step and the heat treatment step can be accomplished in one step.

REFERENCES:
patent: 3344000 (1967-09-01), Baldy et al.
patent: 3388011 (1968-06-01), Zackay et al.
patent: 3788903 (1974-01-01), Suzuki et al.

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