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      Effect of α+β solution treatment and aging on the performance of powder forged Ti-5Al-2.5Fe

      Bolzoni, Leandro; Yang, Fei; Jia, Mingtu
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      Effect of solution treatment and aging.pdf
      Published version, 2.236Mb
      DOI
       10.1080/25787616.2023.2170691
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      Permanent link to Research Commons version
      https://hdl.handle.net/10289/15518
      Abstract
      Amongst titanium alloys, the α+β Ti alloys are the ones with the best compromise between strength and fracture toughness. However, the applicability of α+β Ti alloys is limited by their higher cost compared to other structural metals. Reduction of the cost can be obtained using cheaper alloying elements and creative manufacturing processes. This study aims to investigate if α+β Ti alloys can be produced at lower cost using powder forging and to understand the effect that the post-forging α+β solution treatment and aging have on the microstructure and mechanical properties. We demonstrate that the proposed approach is a viable alternative to manufacture α+β Ti alloys and that the chosen forging temperature (i.e. thermal history) is critical for producing high-strength ductile alloys. The microstructural modification induced by the α+β solution treatment and aging generally increases both the strength and the ductility, but the actual improvement is still dictated by the conditions used to thermomechanically deform the α+β Ti alloy.
      Date
      2023-12-31
      Type
      Journal Article
      Publisher
      Informa UK Limited
      Rights
      © 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/)
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      • Science and Engineering Papers [3124]
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