About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
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Presentation Title |
Characterization of Size and Geometry Dependency at Elevated Temperatures in Additively Manufactured Titanium Alloy |
Author(s) |
Daniel A. June, Mehrdad Pourjam, Andrew Wessman, Kavan Hazeli |
On-Site Speaker (Planned) |
Daniel A. June |
Abstract Scope |
This study investigates the role of size and geometry at temperatures ranging from ambient, 250, and 450 degrees Celsius on the mechanical behavior of additively manufactured titanium alloy (Ti-6Al-4V). Samples are produced by the laser powder bed fusion (L-PBF) technique. Mechanical properties for round and flat geometry tensile specimens varying in thickness from 1.5mm to 3.5mm were quasi-statically tested for each temperature. Key mechanical metrics including Young's modulus, yield strength, and strain hardening rate as a function of thickness and temperature are presented. We will present our analysis regarding Young's modulus and yield strength variation at elevated temperatures. Controversially, we found that irrespective of the geometry strain hardening rates as temperature increased. We present a comprehensive microstructural examination to explain the stated observation. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Titanium, Other |