| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Recent Advances in Titanium Science and Technology: MPMD/SMD Symposium Honoring Professor Dipankar Banerjee
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| Presentation Title |
Oxide Dispersion Strengthening: An Old Topic with New Developments |
| Author(s) |
Michael J. Mills, Milan Heczko, Jiashi Miao, Andreas Bezold, Stephen Niezgoda, Calvin Stewart, Yunzhi Wang, Emmanuelle Marquis, Timothy Smith |
| On-Site Speaker (Planned) |
Michael J. Mills |
| Abstract Scope |
It has been known for decades that oxide dispersion strengthening (ODS) is one of the most effective means of producing creep-resistant alloys. However, the widespread deployment of ODS has been limited by the complex, conventional processing route to create these alloys involving mechanical alloying and subsequent thermo-mechanical processing. A new additive ODS process using laser powder bed fusion has recently been developed by collaborators at NASA Glenn and enables the synthesis of ODS alloys in a single step. This route has been utilized to design an ODS solid solution alloy (GRX-810) which has exceptional high temperature properties. Detailed electron microscopy analysis has been performed to understand the development of dislocation substructures during creep of GRX-810, and a model NiCoCr ODS alloy. The present status of this work, understanding of strengthening mechanisms, and prospects for developing a wider range of ODS strengthened alloys will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, Characterization |