Nitrided materials

Details Nitrided materials Nitrided materials

1974-11-20

1977-05-31

Steiner, Arthur J.

Metal treatment

Compositions

Heat treating

75134N, 75134F, 75134V, 75174, 148 32, C22C 2702

Patent

active

040267300

ABSTRACT:
Nitrided cutting tool materials having excellent wear and abrasion resistance. Such materials consist essentially of an alloy base of (a) one or more metals of the group columbium and vanadium and sometimes tantalum; (b) hafnium; (c) one or more metals of the group molybdenum, tungsten, rhenium and chromium; and (d) optionally titanium and/or zirconium, all in amounts by weight as are set out in this specification. These alloys are formable to shape and are then nitrided to produce a nitrided gradient in a high hardness surface zone.

REFERENCES:
patent: 3011927 (1961-12-01), Zelezny
patent: 3125445 (1964-03-01), Lottridge
patent: 3161949 (1964-12-01), Dickinson et al.
patent: 3549427 (1970-12-01), Rausch et al.
patent: 3549429 (1970-12-01), Rausch et al.
patent: 3679494 (1972-07-01), Hill et al.
ITT Research Report IR Report-IR-718-7(III) Sept., 1967, pp. 51-56, 58-60, 65 & 67.

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