PHASE DIAGRAM OF THE SYSTEM TiFe-V

Journal Article · Fri Apr 01 04:00:00 EST 1960 · Zhur. Neorg. Khim.

OSTI ID:4175462

Pi, C; Kornilov, I I

Sintered mixtures of vanadium and the compound TiFe with 3, 5, 7, 10, 15, 20, 25, 28, 30, 32, 35, 40, 45, 50, 55, tric arc furnace, first under vacuum and then in an argon atmosphere. Thermal analysis indicates the formation of the ternary metallic compound (TiFe)V at 1390 tained C by way of a peritectic reaction between a solid solution (with vanadium as a base) and a liquid phase. The compound (TiFe)V forms a solid solution designated as a phase. It has a hexagonal structure similar to TiFe/sub 2/ (MgZn/sub 2/ type) whose lattice parameters are: a = 4.88 A, c = 7.96 A, and c/a = 1.63. Its hardness is high, being equal to 800 Hv. The second (lower) part of the solidus curve at 1365 tained C indicated a eutectic crystallization of 2/ spheres con and phases on a base of TiFe and (TiFe)V, respectively. In the system TiFe-V there are three homogeneous solid solutions ( han the 800 deg , , and ore resistant t ) on a base of TiFe, (TiFe)V, and V, respectively, and two regions with two phases ( han the 800 deg + and + ore resistant t ). The solubility of (TiFe)V in vanadium increases with temperature, while the solubility of TiFe or V in the solid solution hardly changes with temperature. The haniness of alloys containing 15 to 70 wt.% V remains almost constant irrespective of thermal treatment. At first the hardness increases up to 20 wt.% V to formation of the compound (TiFe)V. Then, from 25 to 33 wt.% V, the region of the phase, the hardness remains at a maximum and gradually decreases with increasing vanadium content. Establishing the nature of the phases in the quasi-binary system TiFe-V is of value in studying the effect of the compound (TiFe)V on the properties of vanadium and in investigating the phase diagram of the tennary system Ti- TiFe-V. (TTT)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-14-019477
• OSTI ID: 4175462
• Journal Information: Zhur. Neorg. Khim., Journal Name: Zhur. Neorg. Khim. Vol. Vol: 5
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ARGON
CONFIGURATION
CRYSTALLIZATION
ELECTRIC ARCS
EUTECTICS
EXPANSION
FURNACES
HARDNESS
HEAT TREATMENTS
HIGH TEMPERATURE
INERT GASES
INTERMETALLIC COMPOUNDS
IRON ALLOYS
LATTICES
LIQUIDS
MAGNESIUM ALLOYS
MELTING
METALS, CERAMICS, AND OTHER MATERIALS
MIXING
PHASE DIAGRAMS
QUANTITY RATIO
REACTION KINETICS
SINTERED MATERIALS
SOLID SOLUTIONS
SOLUBILITY
STANDARDS
TEMPERATURE
THERMAL ANALYSIS
TITANIUM ALLOYS
VACUUM
VANADIUM
VANADIUM ALLOYS
VARIATIONS
ZINC ALLOYS