Journal article
Natural aging of a metastable β-type titanium alloy to simultaneously enhance yield strength and uniform elongation
Scripta Materialia, Vol.234, pp.1-6
2023
Abstract
Natural aging has received little attention in Ti alloys. In the present study, natural aging was detected in a transformation-induced plasticity (TRIP) Ti-15Nb-5Zr-4Sn-1Fe alloy which resulted in a significant increase in the yield strength from 493 MPa to 683 MPa without sacrificing ductility. Natural aging resulted in diffusional coarsening of the ω particles, which decreased the ω-to-β reversibility and impeded the stress-induced β-to-αʹ martensitic transformation under subsequent deformation. Consequently, the stress-induced β-to-αʹ martensitic transformation occurred continuously over a wider range of strains than without natural aging. This led to simultaneous increases in the yield strength and uniform elongation, attributing to enhanced strengthening from the coarsened ω and the more sluggish stress-induced martensitic transformation. These findings demonstrate the potential to regulate stress-induced martensitic transformation and mechanical properties of metastable β-Ti alloys by controlling the development of ω through natural aging.
Details
- Title
- Natural aging of a metastable β-type titanium alloy to simultaneously enhance yield strength and uniform elongation
- Authors
- Yu Fu (Author) - Beihang UniversityWenlong Xiao (Corresponding Author) - Beihang UniversityDamon Kent (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringJian Rong (Author) - Beihang UniversityXinqing Zhao (Author) - Beihang UniversityChaoli Ma (Author) - Beihang University
- Publication details
- Scripta Materialia, Vol.234, pp.1-6
- Publisher
- Elsevier Ltd
- DOI
- 10.1016/j.scriptamat.2023.115569
- ISSN
- 1872-8456
- Grant note
- 51671012 / National Natural Science Foundation of China
- Organisation Unit
- School of Science, Technology and Engineering; University of the Sunshine Coast, Queensland
- Language
- English
- Record Identifier
- 99737598502621
- 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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