Microstructural Study of Newly Designed Ti-6Al-1Fe Alloy through Deformation

Abstract:

Recently, iron (Fe) is introduced to substitute vanadium (V) in Ti-alloy. Therefore, new (α+β) titanium alloy, Ti-6Al-1Fe was designed through a complete replacement of V by Fe with major composition modifications of Ti-6Al-4V. This new alloy is believed could provide similar properties of Ti-6Al-4V through modification of its microstructures. Different heat treatments can lead to a diversity of microstructural permutations and combinations. Thus, it is very crucial to study in-depth understanding about the microstructure of Ti-6Al-1Fe. Results reveal that the microstructure of as-received alloy is a typical fine lamellar microstructure. The bi-modal microstructure can be obtained by hot rolling below beta-transus temperature (T_β) followed by recrystallization treatment at 925°C. While cold rolling followed by recrystallization treatment at 925°C produce equiaxed microstructure.

• Periodical: Solid State Phenomena (Volume 264)
• Pages: 54-57
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.264.54
• Online since: September 2017
• Authors: Ayad Omran Abdalla*, Astuty Amrin, Roslina Mohammad, M.A. Azmah Hanim
• Keywords: Lamellar Microstructure, Recrystallization Treatment, Ti-Al-Fe Alloy

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