Home > Research > Publications & Outputs > Facile route to implement transformation streng...

Research

Associated organisational unit

Electronic data

  • manuscript

    Rights statement: This is the author’s version of a work that was accepted for publication in Scripta Materialia. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Scripta Materialia, 208, 2022 DOI: 10.1016/j.scriptamat.2021.114362

    Accepted author manuscript, 5.1 MB, PDF document

    Available under license: CC BY-NC-ND: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License

Links

Text available via DOI:

Keywords

View graph of relations

Facile route to implement transformation strengthening in titanium alloys

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Published
Article number114362
<mark>Journal publication date</mark>1/02/2022
<mark>Journal</mark>Scripta Materialia
Volume208
Number of pages5
Publication StatusPublished
Early online date24/10/21
<mark>Original language</mark>English

Abstract

Developing lighter, stronger and more ductile aerospace metallic materials is in demand for energy efficiency strategies. Alloys with twinning-induced plasticity (TWIP) and/or transformation-induced plasticity (TRIP) effects have been exploited to defeat the conflict of strength versus ductility, yet very few if any physically informed methods exist to address the complex interactions between the transitions. Here we report a facile route to deploy transformation-mediated strengthening in Ti alloys, which particularly focuses on the supervised activation of TRIP and TWIP via a mechanism-driven modelling approach. New alloys were comparatively developed and presented notable resistances to strain localisation, but interestingly through distinct mechanical characteristics. Specifically, extraordinary strain-hardening rate (dσ/dε) with a peak value of 2.4 GPa was achieved in Ti-10Mo-5Nb (wt.%), resulting from the synergetic activation of hierarchical transformations. An efficient model integrating TRIP and TWIP was applied to understand the interplays of the transition mechanisms.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Scripta Materialia. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Scripta Materialia, 208, 2022 DOI: 10.1016/j.scriptamat.2021.114362