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Tytuł:
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Beta Forging of Ti-6Al-4V: Microstructure Evolution and Mechanical Properties
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Autorzy:
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Astarita, Antonello
Ducato, Antonino
Fratini, Livan
Paradiso, Valentino
Scherillo, Fabio
Squillace, Antonino
Testani, Claudio
Velotti, Carla
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Źródło:
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Key Engineering Materials; June 2013, Vol. 554 Issue: 1 p359-371, 13p
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Titanium alloys are finding an increasing use in the aeronautical field, due to their characteristics of high mechanical properties, lightness and corrosion resistance. Moreover these alloys are compatible with the carbon fibre reinforced plastics that are also finding a wide use in the aeronautical field. On the other hand the use of these alloys implies some drawbacks, for example titanium alloys are often considered more difficult to form and generally have less predictable forming characteristics than other metallic alloys such as steel and aluminum. In this paper was studied both the microstructure evolution and the mechanical properties of a Ti-6Al-4V rolled bar after hot forging. The thermo-mechanical response of a Ti-6Al-4V alloy was studied in elevated temperature compression tests (CT). Furthermore numerical simulations were carried out in order to do a comparison between numerical data and experimental results. The simulations were carried out using an implicit commercial code able to conduct coupled thermo-mechanical-microstructural analysis of hot forming processes of metal alloys.