Subscale reaction strengthening of low carbon ferrous metal stoc

Details Subscale reaction strengthening of low carbon ferrous metal stoc Subscale reaction strengthening of low carbon ferrous metal stoc

1975-07-30

1976-12-21

Satterfield, Walter R.

Metal treatment

Compositions

Heat treating

75123B, 148 16, C21D 148

Patent

active

039986667

ABSTRACT:
Low carbon, low alloy, ferrous metal stock containing from 0.05 to 0.5 wt. percent uncombined group IVB or VB metal, is strengthened by a procedure comprising; gas phase nitrogenation at temperatures below 590.degree. C to form extremely fine dispersions of such group IVB or VB metal nitrides, followed by an additional treatment for removing excess nitrogen in solid solution.

REFERENCES:
patent: 2603562 (1952-07-01), Rapatz
patent: 3399085 (1968-08-01), Knechter et al.
patent: 3748195 (1973-07-01), Kondo et al.
patent: 3754894 (1973-08-01), Saccomano et al.
patent: 3804678 (1974-04-01), Kindlimann
patent: 3870572 (1975-03-01), Brugger et al.

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