About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
Presentation Title |
Testing Methodology Development for Ultra-hight Temperature Refractory Alloys Made with Additive Manufacturing |
Author(s) |
Kelly Orsborn, Omar R Mireles, Eric T Brizes, Antonio J Ramirez |
On-Site Speaker (Planned) |
Kelly Orsborn |
Abstract Scope |
As Additively Manufactured (AM) refractory alloys are developed for extreme temperature environments, new methodologies evaluating their fitness for service must be developed. A thermomechanical simulator is modified and used to evaluate mechanical properties and oxidation of AM refractory alloys at their expected service temperatures. Both the fixturing and sample geometry for this new test are designed considering the joule heating utilized by the testing system as well as the potential risk of damaging standard components inside the test chamber. Oxidation during testing is also manipulated by controlling the vacuum in the chamber, including oxide-capturing mechanisms, and evaluating an auxiliary system reducing the oxygen presence through chemical reactions. The considerations guiding the development of this new test are discussed alongside recent findings to provide insight into the significant deviations from traditional mechanical testing methods required to accommodate these extremely high temperatures. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, High-Temperature Materials, Mechanical Properties |