|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Accelerated Materials Evaluation for Nuclear Application Utilizing Test Reactors, Ion Beam Facilities and Integrated Modeling
||Microstructural and Nanomechanical Characteristics of an Ion-Irradiated Lanthana-Bearing Nanostructured Ferritic Steel
||Somayeh Pasebani, Ankan Guria, Jatuporn Burns, Yaqiao Q. Wu, Indrajit Charit, Darryl P. Butt, James I. Cole, Lin Shao, Lloyd Price
|On-Site Speaker (Planned)
Yttria-bearing nanostructured ferritic steels (NFSs) exhibit excellent high temperature strength, creep resistance and radiation damage tolerance. A NFS containing lanthana with a nominal composition of Fe-14Cr-1Ti-0.3Mo-0.5La2O3 (wt.%), 14LMT, was developed using a combined route of high energy ball milling and spark plasma sintering. In order to evaluate the radiation stability of this material, samples were irradiated by Fe+2 ions at 475 oC to doses of 100, 200, 300 and 400 dpa at the Texas A&M Accelerator Laboratory. Microstructure of the unirradiated and irradiated samples is examined by transmission electron microscopy and atom probe tomography at the Center for Advanced Energy Studies. Nanomechanical behavior of the samples was studied by nanoindentation experiments. The results obtained from the 14LMT alloy are then compared with those from various other materials irradiated under similar conditions. The work is supported by the Department of Energy Nuclear Science User Facilities.
||Planned: A print-only volume