| About this Abstract |
| Meeting |
2010 TMS Annual Meeting & Exhibition
|
| Symposium
|
General Abstracts: Structural Materials Division
|
| Presentation Title |
Deformation Behavior of U-6wt%Nb Following Shock Loading |
| Author(s) |
Adam M Farrow, Heather Volz, George T Gray III, Ellen Cerreta, Donald Brown, Carl Cady, Mike Lopez, Ann Kelly, Pallas Papin |
| On-Site Speaker (Planned) |
Adam M Farrow |
| Abstract Scope |
Uranium-6wt%Niobium samples in two different temper conditions were shocked with a high-explosive plane-wave lens and tested in compression. The suppression of the Shape-Memory effect typical of artificially aged Uranium-Niobium alloys appears to have been removed following shock loading. Metallography, scanning electron and ion microscopy, X-ray diffraction, and neutron diffraction techniques were applied to characterize the deformation mechanisms. Texture evolution during compressive deformation evaluated via neutron diffraction in both temper conditions is discussed in comparison to the texture evolution normally observed in non-shocked Uranium-Niobium Shape-Memory Alloys, as is the role of retained high-pressure phases on the subsequent deformation behavior. Additionally, the shear-banding behavior is investigated via the “top-hat” forced-shear specimen geometry. Metallography is presented to reveal the twinning local to the shear-banding. |
| Proceedings Inclusion? |
Definite: A CD-only volume |