About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Mechanical Behavior of Nuclear Reactor Materials and Components III
|
Presentation Title |
Micromechanical Aspects of Deformation and Failure of Advanced Iron-Chromium-Aluminum Alloys |
Author(s) |
Ercan Cakmak, Maxim Gussev, Nedim Cinbiz, Kevin Field, Ke An |
On-Site Speaker (Planned) |
Nedim Cinbiz |
Abstract Scope |
Mechanical behavior of as-received (AR) and welded (W) Fe-13Cr-5Al with Nb or TiC additions was investigated using digital image correlation (DIC) and neutron diffraction in situ. Deformation-induced void microstructure was characterized by x-ray computed tomography to reveal the microscopic aspects of the failure. Neutron diffraction, DIC, and XCT data were analyzed together to reveal the microscopic aspects of the deformation. Although the high density of voids distributed along the gauge section of Nb-modified specimens, the brittle-like failure of W sample with cleavage was observed. On the other hand, TiC modification improved the ductility of AR and W samples, and failure occurred via completely ductile processes. Results indicated that ductile processes were operative for all samples, but type of modification determines the failure type either governed by the dislocation motion or toughness or both. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Mechanical Properties, Other |