CONSTITUTION DIAGRAM OF Hf-Re ALLOY

Journal Article · Sun Jul 01 00:00:00 EDT 1962 · Zh. Neorgan. Khim.

OSTI ID:4772374

Savitskii, E M; Tylkina, M A; Tsyganova, I A; Gladyshevskii, E I; Mulyava, M P

Microstructure, microhardness, and x-ray diffraction analyses were made, and the constitution diagram for Hf-Re, demonstrating three metallic compounds, was constructed. The solubility of Re in alpha Hf is less than 3 wt.% at 1250 deg C (with 3 wt.% Hf it is a two-phase alloy). Additions of Re to Hf partially stabilize the BETA phase and reduce the temperature of polymorphous transformation to 1250 deg C. A second intermetallic compound, HfRe/sub 2/, with a structure resembling the MgZn/sub 2/ structure, is formed at 2850 deg C. The third compound formed at 2280 deg C resembles Zr/sub 2/Re in structure. The microhardness of Hf/sub 3/Re/sub 2/ is 1000 kg/mm/sub 2/. (R.V.J.)

• Research Organization: Baikov Inst. of Metallurgy and Franko L'vov State Univ., USSR
• NSA Number: NSA-17-001991
• OSTI ID: 4772374
• Journal Information: Zh. Neorgan. Khim., Journal Name: Zh. Neorgan. Khim. Vol. Vol: 7
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ALLOTROPY
DIFFRACTION
HAFNIUM
HAFNIUM ALLOYS
HARDNESS
HIGH TEMPERATURE
INTERMETALLIC COMPOUNDS
LATTICES
MAGNESIUM ALLOYS
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
PHASE DIAGRAMS
RHENIUM ALLOYS
SOLUBILITY
ZINC ALLOYS
ZIRCONIUM ALLOYS