Selection of crucible oxides in molten titanium and titanium aluminum alloys by thermo-chemistry calculations | Zendy

Ana Kostov | Zendy; Bernd Friedrich | Zendy

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Selection of crucible oxides in molten titanium and titanium aluminum alloys by thermo-chemistry calculations

Author(s) -

Ana Kostov,

Bernd Friedrich

Publication year - 2005

Publication title -

journal of mining and metallurgy section b metallurgy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.42

H-Index - 20

eISSN - 2217-7175

pISSN - 1450-5339

DOI - 10.2298/jmmb0501113k

Subject(s) - crucible (geodemography) , titanium , materials science , metallurgy , aluminium , zirconium , yttrium , impurity , titanium alloy , oxygen , oxide , chemistry , alloy , computational chemistry , organic chemistry

Titanium and its alloys interstitially dissolve a large amount of impurities such as oxygen and nitrogen, which degrade the mechanical and physical properties of alloys. On the other hand crucible oxides based on CaO, ZrO2 Y2O3, etc., and their spinels (combination of two or more oxides) can be used for melting titanium and its alloys. However, the thermodynamic behavior of calcium, zirconium, yttrium on the one side, and oxygen on the other side, in molten Ti and Ti-Al alloys have not been made clear and because of that, it is very interesting for research. Owing of literature data, as well as these crucibles are cheaper than standard crucibles for melting titanium and titanium alloys, in this paper will be presented the results of selection of thermo-chemistry analysis with the aim to determine the crucible oxide stability in contact with molten titanium and titanium-aluminum alloys

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