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- Title
Composition-Dependent Microstructure-Property Relationships of Fe and Al Modified Ti-12Cr (wt.%).
- Authors
Ballor, J.; Boehlert, C. J.; Ikeda, M.; Kautz, E. J.; Devaraj, A.
- Abstract
β-Titanium (Ti) alloys have applications in several industries (e.g. aerospace, automotive, and biomedical) where material performance requirements vary widely. To tailor the microstructure and mechanical properties of β-Ti alloys for various applications, it is critical to understand the influence of individual alloying elements. Toward this goal, we investigated the effect of individual alloying additions on the microstructure and resultant mechanical properties of four model β-Ti alloys: Ti-12Cr, Ti-12Cr-3Al, Ti-12Cr-1Fe, and Ti-12Cr-1Fe-3Al (wt.%). The microstructures of these alloys were studied using x-ray diffraction, electron microscopy, and atom probe tomography. The mechanical properties were analyzed via Vickers and Rockwell hardness measurements and tensile testing. The addition of 1 wt.% Fe resulted in an approximate 5% increase in elongation-to-failure (εf), while the addition of 3 wt.% Al did not appear to significantly affect εf. The addition of Fe and Al decreased the yield and ultimate tensile strengths.
- Subjects
ATOM-probe tomography; TENSILE strength; VICKERS hardness; TENSILE tests; ELECTRON microscopy
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2019, Vol 71, Issue 7, p2321
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-019-03467-y