Ultrahigh strain hardening in a transformation-induced plasticity and twinning-induced plasticity titanium alloy

Yu Fu; Wenlong Xiao; Damon Kent; Matthew S Dargusch; Junshuai Wang; Xinqing Zhao; Chaoli Ma

doi:10.1016/j.scriptamat.2020.06.029

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Ultrahigh strain hardening in a transformation-induced plasticity and twinning-induced plasticity titanium alloy

Journal article

Peer reviewed

Ultrahigh strain hardening in a transformation-induced plasticity and twinning-induced plasticity titanium alloy

Yu Fu, Wenlong Xiao, Damon Kent, Matthew S Dargusch, Junshuai Wang, Xinqing Zhao and Chaoli Ma

Scripta Materialia, Vol.187, pp.285-290

2020

DOI: https://doi.org/10.1016/j.scriptamat.2020.06.029

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Abstract

Transformation-induced plasticity

Twinning-induced plasticity

Mechanical properties

Titanium alloys

Strain hardening

In this study, a design strategy employing stress-induced β to hexagonal α′ martensitic transformation to develop a novel Ti-15Nb-5Zr-4Sn-1Fe alloy with ultrahigh strain hardening rate (~6.1 GPa) is reported. Microstructural investigations reveal that the superior strain hardening response is contributed by stress-induced β to α′ transformation with accompanying reversion of athermal ω and profuse internal {1¯011}<101¯2> and {112¯2}<112¯3> α′ mechanical twinning which promote twin-twin interactions, imparting high strength and outstanding uniform elongation. This study may serve as a template for developing new class of transformation-induced plasticity (TRIP) and twinning-induced plasticity (TWIP) Ti alloys based on β to α′ martensitic transformation. [Display omitted]

Details

Title: Ultrahigh strain hardening in a transformation-induced plasticity and twinning-induced plasticity titanium alloy
Authors: Yu Fu (Author) - Beihang University
Wenlong Xiao (Author) - Beihang University
Damon Kent (Author) - University of the Sunshine Coast, Queensland, School of Science and Engineering - Legacy
Matthew S Dargusch (Author) - University of Queensland
Junshuai Wang (Author) - Beihang University
Xinqing Zhao (Author) - Beihang University
Chaoli Ma (Author) - Beihang University
Publication details: Scripta Materialia, Vol.187, pp.285-290
Publisher: Elsevier Ltd
DOI: 10.1016/j.scriptamat.2020.06.029
ISSN: 1872-8456
Organisation Unit: School of Science, Technology and Engineering; University of the Sunshine Coast, Queensland; School of Science and Engineering - Legacy
Language: English
Record Identifier: 99465006902621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Nanoscience & Nanotechnology

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