Sintering method for tungsten-nickel-manganese type heavy alloy

Details Sintering method for tungsten-nickel-manganese type heavy alloy Sintering method for tungsten-nickel-manganese type heavy alloy

1997-04-30

1999-10-19

Jenkins, Daniel J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Plural heating steps including sintering

419 38, 419 47, 419 57, 419 58, B22F 312

Patent

active

059703075

ABSTRACT:
A sintering method for a W--Ni--Mn type heavy alloy, including controlling the deoxidization of tungsten and nickel under an inert atmosphere, changing to a hydrogen atmosphere at above a temperature at which manganese is deoxidized and simultaneously deoxidizing tungsten, nickel and manganese, and sintering by raising the temperature, resulting in the fabrication of a sintered heavy alloy having a 100% relative theoretical density.

REFERENCES:
patent: 4986961 (1991-01-01), Spencer et al.
patent: 5145512 (1992-09-01), Spencer et al.
patent: 5334341 (1994-08-01), Streicher et al.
patent: 5338506 (1994-08-01), Freiderichs et al.
patent: 5342573 (1994-08-01), Amano et al.
patent: 5441695 (1995-08-01), Gladden

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