High hardness and high toughness nitriding powder metallurgical

Details High hardness and high toughness nitriding powder metallurgical High hardness and high toughness nitriding powder metallurgical

1985-06-18

1987-06-09

Rutledge, L. Dewayne

Alloys or metallic compositions

Ferrous

Chromium containing, but less than 9 percent

420110, 420111, C22C 3822

Patent

active

046719300

ABSTRACT:
A high-speed steel obtained by powder metallurgy processing wherein a chemical composition includes, by weight %,
C: a quantity (%) which satisfies with the following formula ##EQU1## where Ceq=0.19+0.017 (W+2Mo)+0.22 V

REFERENCES:
patent: 4121930 (1978-10-01), Yukawa et al.
patent: 4140527 (1979-02-01), Kawai et al.
patent: 4469514 (1984-09-01), Holtz, Jr.

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