Iron-refractory metal-boron glassy alloys

Details Iron-refractory metal-boron glassy alloys Iron-refractory metal-boron glassy alloys

1978-01-03

1979-01-09

Steiner, Arthur J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75122, 75123J, 75176, C22C 3812, C22C 2704, C22C 3000

Patent

active

041336798

ABSTRACT:
Glassy alloys containing iron and molybdenum or tungsten, together with low boron content, are disclosed. The glassy alloys of the invention consist essentially of about 5 to 12 atom percent boron, a member selected from the group consisting of about 25 to 40 atom percent molybdenum and about 13 to 25 atom percent tungsten and the balance essentially iron plus incidental impurities. The glassy alloys evidence hardness values of at least about 1300 Kg/mm.sup.2, ultimate tensile strengths of at least about 420 Kpsi and crystallization temperatures of at least about 600.degree. C.

REFERENCES:
patent: 3856513 (1974-12-01), Chen et al.
patent: 3871836 (1975-03-01), Polk et al.
patent: 3986867 (1976-10-01), Masumoto et al.
patent: 4056411 (1977-11-01), Chen et al.
patent: 4067732 (1978-01-01), Ray

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