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Development of Ti6AlFe Alloy and its Microstructural Transformation During Synthesis and Subsequent Thermo-Mechanical Treatment

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Abstract

A compositional modification was initially carried out in Ti-6Al-4V alloy by substitution replacement of vanadium (V) by iron (Fe) as a β-stabilizing alloying element in order to develop Ti6Al(1-3)Fe alloys. Afterwards, Ti6Al(1-3)Fe alloys underwent rolling at 800 °C followed by solution heat treatment at 900 °C. Microstructural characterization reveals that Ti6Al(1-3)Fe alloys contain a lamellar α+β microstructure wherein size of lamellar colonies and the lamellae width gradually decrease by increasing Fe content. Subsequent thermo-mechanical and solution heat treatment lead to an increase in β-phase percentage by increasing Fe content. Ti6Al(1-3)Fe alloys show a superior hardness (HV), ultimate tensile strength (UTS) and elongation (%) owing to extensively refined lamellar α+β microstructure. HV values of Ti6Al(1-3)Fe alloys increase after thermo-mechanical treatment while UTS and elongation (%) values as well as corrosion properties drop due to the larger amount of β-phase in thermo-mechanical treated Ti6Al(1-3)Fe alloys.

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Authors and Affiliations

  1. College of Mechanical Engineering Technology, Alrahba Street, Alfwayhat, Benghazi, Libya

    Ayad Omran Abdalla

  2. Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia Kuala Lumpur, 54100 Jalan Semarak, Kuala Lumpur, Malaysia

    Astuty Amrin & Khairur Rijal Jamaludin

  3. New Technologies Research Center, Amirkabir University of Technology, Tehran Polytechnic, 424 Hafez Ave., P.B. 15875-4413, Tehran, Iran

    Meysam Toozandehjani

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  1. Ayad Omran Abdalla
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  2. Astuty Amrin
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  3. Khairur Rijal Jamaludin
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  4. Meysam Toozandehjani
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Correspondence to Astuty Amrin.

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Abdalla, A.O., Amrin, A., Jamaludin, K.R. et al. Development of Ti6AlFe Alloy and its Microstructural Transformation During Synthesis and Subsequent Thermo-Mechanical Treatment. Metallogr. Microstruct. Anal. 11, 569–579 (2022). https://doi.org/10.1007/s13632-022-00833-2

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  • DOI: https://doi.org/10.1007/s13632-022-00833-2

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