| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
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Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
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| Presentation Title |
A-42: A Comparative Study of Microstructure and Multiscale Mechanical Properties of Additively Manufactured Near-α, α+β and β Titanium Alloys |
| Author(s) |
Zhiying Liu, Yu Zou, Jiahui Zhang |
| On-Site Speaker (Planned) |
Jiahui Zhang |
| Abstract Scope |
Additively manufactured near-α, α+β and β titanium alloys have been applied in different scenarios of aerospace and automotive industries. However, a thorough comparison of microstructure and multiscale mechanical properties of different titanium alloys is not studied yet. Here, we use high-speed nanoindentation mapping tests coupled with electron backscattered diffraction (EBSD) to characterize the microscale mechanical properties and microstructure of three titanium alloys: Ti-6Al-2Zr-Mo-V (near-α), Ti-6.5Al-3.5Mo-1.5Zr-0.3Si (α+β) and Ti-10V-2Fe-3Al (β). All the alloys consist of α+β microstructure but exhibit variations in microstructure (grain size, morphology, and volume fraction) and microscale mechanical properties (H and E values). The H and E values of α grains vary in and between the titanium alloys due to the different crystal orientations and chemical compositions, respectively. The contribution of the microstructure and phase properties to macroscale mechanical properties of titanium alloys is also accessed to study the multiscale mechanical properties of additively manufactured titanium alloys. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Titanium |