Abstract
The effect of heat treatment on the microstructure of the metastableα-Ti alloy Ti-10V-2Fe-3Al has been studied using light and electron metallography, analytical electron microscopy, and X-ray diffraction. A survey of the effects of microstructure on tensile properties of the alloy also has been conducted. It has been found that the alloy contains inclusions which are rich in Ti, S, Si, and P. The alloy has been shown to form ω-phase both athermally and isothermally. The isothermal ω can have either an ellipsoidal or a cuboidal morphology. The reasons for this are enumerated. The formation of α-phase has been studied, and three distinct modes of formation are described. A stress induced orthorhombic martensite also has been observed. The effect of this stress induced product on tensile behavior is discussed. The relative roles of inclusions and α-phase precipitates in the tensile fracture also have been examined.
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Formerly at Carnegie-Mellon University, is now at Brown, Boveri & Cie, AG, Baden, Switzerland,
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Duerig, T.W., Terlinde, G.T. & Williams, J.C. Phase transformations and tensile properties of Ti-10V-2Fe-3AI. Metall Trans A 11, 1987–1998 (1980). https://doi.org/10.1007/BF02655118
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DOI: https://doi.org/10.1007/BF02655118