THE REACTION BETWEEN THE INTERMETALLIC COMPOUNDS Ni$sub 3$Al AND Ni$sub 3$Nb

Journal Article · Sun Apr 01 04:00:00 EST 1962 · Doklady Akad. Nauk S.S.S.R.

OSTI ID:4817728

Mints, R S; Belyaeva, G F; Malkov, Yu S

Alloys were prepared in an arc furnace baving a nonconsumable tungsten electrode. The reaction between Ni/sub 3/Al and Ni/sub 3/Nb was followed by thermal and x-ray analyses, and by following the changes in hardness and electrical resistance as a function of composition. Microstructural analysis shows that the 10 to 40% Ni/sub 3/Nb alloys are homogeneous solid solutions similar to pure Ni/sub 3/Al. A eutectic forms at 70% Ni/sub 3/Nb. Confirmatory x-ray analyses showed only one phase with a Ni/sub 3/Al lattice at 0 to 40% Ni/ sub 3/Nb, and two phases (Ni/sub 3/Al and Ni/sub 3/Nb) for higher contents of Ni/ sub 3/Nb. The maximum hardness and electrical resistance occur at 40 to 50% Ni/ sub 3/Nb. The minimum values are observed for the pure intermetallic compounds Ni/sub 3/Al and Ni/sub 3/Nb. (TTT)

• Research Organization: Baikov Inst. of Metallurgy, USSR
• NSA Number: NSA-16-019390
• OSTI ID: 4817728
• Journal Information: Doklady Akad. Nauk S.S.S.R., Journal Name: Doklady Akad. Nauk S.S.S.R. Vol. Vol: 143
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ALLOYS
ALUMINUM ALLOYS
ELECTRIC ARCS
ELECTRIC CONDUCTIVITY
ELECTRODES
EUTECTICS
EXPANSION
FURNACES
HARDNESS
HOMOGENEOUS REACTORS
INTERMETALLIC COMPOUNDS
LATTICES
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
NICKEL ALLOYS
NIOBIUM ALLOYS
PHASE DIAGRAMS
PREPARATION
QUALITATIVE ANALYSIS
REACTION KINETICS
SOLID SOLUTIONS
TUNGSTEN
VARIATIONS
X RADIATION