|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Accelerated Materials Evaluation for Nuclear Application Utilizing Test Reactors, Ion Beam Facilities and Integrated Modeling
||Nanoindentation and In Situ Microcompression Testing in Various Dose Regimes of Proton-beam Irradiated 304 SS
||Ashley Reichardt, David Frazer, Cameron Howard, Amanda Lupinacci, Peter Chou, Peter Hosemann
|On-Site Speaker (Planned)
In the accelerated testing of nuclear materials, ion beam irradiation has proven to be a suitable surrogate for reactor irradiation due to the short irradiation times required and limited activation of samples. However, the resulting shallow and nonuniform ion dose profile calls for micromechanical testing to examine small volumes of irradiated material. In this study we demonstrate the use of both nanoindentation and in situ microcompression testing to correlate changes in mechanical property behavior with dose in 10 dpa 360°C proton-beam irradiated 304 SS. To exploit the nonuniform dose profile, nanoindentation is performed along the dose gradient on the cross sectional surface of the sample, and these results are compared to those of microcompression tests performed at discrete dose regimes on the same surface within a single grain. This provides a direct comparison between radiation hardening, increases in microcompression yield stress, and changes in deformation behavior over dose.
||Planned: A print-only volume