Journal
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
Volume 22, Issue 4, Pages 887-894Publisher
ELSEVIER
DOI: 10.1016/S1003-6326(11)61261-2
Keywords
Ti alloys; thermodynamics; oxide ceramics; interaction
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The thermodynamics of interactions between various oxides (CaO, MgO, Al2O3 and Y2O3) and molten Ti and Ti alloys was investigated. The dissolution mechanism of oxides in molten Ti alloys was provided and the stability of oxides in molten Ti alloys was investigated and predicted by thermodynamic analysis. Interactions between oxides and Ti-Al melts were studied by oxide crucible melting experiments. By quantitative analysis, it is indicated that impurity contents in alloys are proportionally decreased with increasing the Al content in alloys and decreasing the melt temperature, which is in agreement with the results of the predicting thermodynamic stability.
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