Phase Stability and Solution Strengthening in Titanium Alloys.
Final scientific rept. 1 May 71-31 Dec 74,
BATTELLE COLUMBUS LABS OHIO
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The program had to do with effects resulting from the addition of transition elements to titanium while subsequent phases involved alloying with B-metals, or nontransition metals and the so-called interstitial elements. Alloying of titanium with transition metals and B-metals leads to two distinctly different classes of behavior. The alloying of titanium with a transition element results, to a first approximation, in the creation of a new transition metal with an increased electronatom ratio. The principal effect of the alloying of titanium Ti with another transition element T2 is the increasing tendency for the room-temperature-stable quenched crystal structure to be bcc as the solute concentration is increased. The omega-phase is a precipitate which tends to be embrittling. Conclusions regarding the physical properties of an omega-phase alloy structure were based on a detailed analysis of the magnetic and superconductive properties of an aged-to-metastable-equilibrium Ti-Mo 10 at . alloy. The authors also conducted investigations of the Ti-Nb, Ti-Fe, Ti-Mn, Ti-V and Ti-V-Al alloy systems.
- Properties of Metals and Alloys
- Solid State Physics