About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Mechanical Behavior of Nuclear Reactor Components
|
Presentation Title |
High Temperature Strength of Additively Manufactured Gr91 Steel |
Author(s) |
Benjamin P. Eftink, Daniel Vega, Osman El Atwani, David Sprouster, Carl Cady, Mohamad Al-Sheikhly, Thomas Lienert, Stuart Maloy |
On-Site Speaker (Planned) |
Benjamin P. Eftink |
Abstract Scope |
As-deposited additively manufactured Grade 91 steel had excellent mechanical properties with greater strength than wrought Grade 91 steel at room temperature, 300 and 600 C showing excellent promise for nuclear applications. Retention of strength at 300 and 600 C for the as-deposited additively manufactured material was attributed to transitional carbides in lower bainitic microstructural regions. As-deposited additively manufactured Grade 91 steel had a microstructure of lower bainitic regions surrounded by martensite. This is significantly different from the typical tempered martensitic microstructure of conventionally produced Grade 91 steel. In this talk the relationship between microstructure and mechanical properties will be discussed for the Grade 91 steel processed by additive and conventional methods. |
Proceedings Inclusion? |
Planned: |