Publicação:
Crystallographic structure of Ti-6Al-4V, Ti-HP and Ti-CP under high-pressure

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2010-05-11

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The phase stability of a commercial purity (Ti-CP), high purity (Ti-HP) and Ti-6Al-4V alloy were investigated in a diamond anvil cell up to 32 GPa and 298 K using a polychromatic X-ray beam. The Ti-CP and Ti-HP shown the same HCP (c/a∼0.632) to Hexagonal (c/a∼1.63) non reversible martensitic transition at about 9 GPa. The as received Ti-6Al-4V shows a very low relative volume fraction β-Ti / α-Ti. No phase changes were observed in the Ti-6Al-4V alloy in the pressure range of this study. The α phase of the Ti-6Al-4V shows monotonic volume cell pressure dependence. This volume change is reversible and non-hysteretic. The cell of the a phase recovered its original volume when the pressure was released. © 2010 IOP Publishing Ltd.

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Cell pressure, Commercial purity, Crystallographic structure, Diamond-anvil cell, High purity, Martensitic transitions, NO phase, Polychromatic x-rays, Pressure ranges, Ti-6al-4v, Ti-6Al-4V alloy, Volume change, Aluminum, Phase stability, Titanium alloys, Vanadium alloys

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Inglês

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Journal of Physics: Conference Series, v. 215.

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http://hdl.handle.net/11449/71686

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Bauru - FC - Faculdade de Ciências

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