GENERAL REGULARITIES IN THE STABILIZATION OF SOLID $beta$-SOLUTION IN TITANIUM ALLOYS (in Russian)
Journal Article
·
· Doklady Akad. Nauk S.S.S.R.
OSTI ID:4019398
The minimum concentrations of alloying additions required in order to obtain a single-phase, BETA solid solution of titanium on quenching to room temperature are 4.5 to 4.9 at.% Fe, 4.9 at.% Co, 5.0 at.% Mn, 5.8 to 6.3 at.% Ni, 5.8 at.% Mo, 6.0 at.% Re, 8.4 at.% Cr, 8.7 at.% W, 18.4 at.% V, 21.0 at.% Ta, and 23.0 at.% Nb. These minimal critical concentrations of the alloying addition required in order to stabihize the BETA -phase are equivalent to an average electron concentration of 4.2 electrons per atom. This regularity was verified for the triple alloy systems of Ti-Te-- V, Ti-- Fe-- Cr, Ti-- V-- Mo, Ti-- Mo-- Fe, and Ti-- Mo-Mn. Thus it is possible to predict the alloy compositions which will give a single-phase, beta structure on quenching. A ternary phase diagram for Ti--Fe--V is presented as an example. A mixture of BETA + omega phases are formed if the electron concentration is (4.2 electrons per atom, while the beta phase only is formed at an electron concentration >4.2 electrons per atom. All these ternary systems, which were constructed on the basis of the critical stabilizing concentration of the alloying addition in the corresponding binary systems, followed this rule. (TTT)
- Research Organization:
- Baikov Inst. of Metallurgy, Academy of Sciences, USSR
- NSA Number:
- NSA-15-025244
- OSTI ID:
- 4019398
- Journal Information:
- Doklady Akad. Nauk S.S.S.R., Journal Name: Doklady Akad. Nauk S.S.S.R. Vol. Vol: 138
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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Related Subjects
ALLOTROPY
ALLOYS
CHROMIUM ALLOYS
COBALT ALLOYS
ELECTRONS
HEAT TREATMENTS
IRON ALLOYS
MANGANESE ALLOYS
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NIOBIUM ALLOYS
PHASE DIAGRAMS
QUENCHING
RHENIUM ALLOYS
SOLID SOLUTIONS
STABILITY
TANTALUM ALLOYS
TITANIUM ALLOYS
TUNGSTEN ALLOYS
VANADIUM ALLOYS
ALLOYS
CHROMIUM ALLOYS
COBALT ALLOYS
ELECTRONS
HEAT TREATMENTS
IRON ALLOYS
MANGANESE ALLOYS
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NIOBIUM ALLOYS
PHASE DIAGRAMS
QUENCHING
RHENIUM ALLOYS
SOLID SOLUTIONS
STABILITY
TANTALUM ALLOYS
TITANIUM ALLOYS
TUNGSTEN ALLOYS
VANADIUM ALLOYS