Phase equilibria in W-Fe-Co-Ni system alloys I. Alloys containing 10% (Fe+Co+Ni) at 1400-1200/sup 0/ C

Journal Article · Tue Apr 01 00:00:00 EST 1986 · Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00794413· OSTI ID:6874000

Zakharov, A M

The authors investigate the phase composition of W-Fe-Co-Ni system alloys with a total (Fe + Co + Ni) content of 10% at 1400-1200 C and also of their solidus temperature. The alloys were prepared from powders of tungsten (not less than 99.87% ), carbonyl nickel (not less than 99.98%), type ChDA iron (not less than 99.55%), and cobalt (not less than 99.5%) with a particle size of 1.7-70 um. The phase composition of the alloys was studied by methods of metallographic, x-ray, and micro-x-ray spectral analysis and also by measurement of the microhardness of the coexisting phases. upon Completiodnof crystallization and at temperatures of 1400-1200 C alloys of the primary section with 10% (Fe + Co + Ni) have a two-(alpha + u or alpha + gamma) or three phase (alpha + u + gamma) structure.

• Research Organization: Moscow Institute for Steele and Alloys
• OSTI ID: 6874000
• Journal Information: Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States), Vol. 25:4
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COBALT ALLOYS
MICROSTRUCTURE
PHASE STUDIES
IRON ALLOYS
NICKEL ALLOYS
TUNGSTEN BASE ALLOYS
CRYSTALLIZATION
EQUILIBRIUM
METALLOGRAPHY
PHASE DIAGRAMS
POWDER METALLURGY
PRESSURE EFFECTS
QUANTITY RATIO
TEMPERATURE EFFECTS
X-RAY DIFFRACTION
ALLOYS
COHERENT SCATTERING
CRYSTAL STRUCTURE
DIAGRAMS
DIFFRACTION
METALLURGY
PHASE TRANSFORMATIONS
SCATTERING
TUNGSTEN ALLOYS
360102* - Metals & Alloys- Structure & Phase Studies