|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Accelerated Materials Evaluation for Nuclear Application Utilizing Test Reactors, Ion Beam Facilities and Integrated Modeling
||Y-3: Effects of Neutron Irradiation on Zr52.5Cu17.9Ni14.6Al10Ti5 (BAM-11) Bulk Metallic Glass
||Jamieson Brechtl, N.A.P. Kiran Kumar, Hongbin Bei, Steven Zinkle
|On-Site Speaker (Planned)
Bulk metallic glasses are candidates for structural applications due in part to their good mechanical properties and near net shape fabrication. Metallic glasses have the potential to exhibit good radiation resistance since their amorphous structure prohibits the formation of Frenkel defects, which can subsequently lead to voids and dislocation loops. Mechanical property tests were performed on Zr52.5Cu17.9Ni14.6Al10Ti5 bulk metallic glass (BAM-11) irradiated with fission neutrons to 0.1 and 1 dpa at ~90 oC. The irradiated samples exhibited a moderate change in hardness ranging from ~7 to ~25%. The dynamic Young’s modulus in the sample irradiated to 0.1 dpa was ~5% less than the control sample. The density of BAM-11 decreased by roughly ~0.4% for both 0.1 and 1 dpa. Furthermore, the experimental results indicate that the irradiation-induced damage begins to saturate at a dose of approximately 1 dpa. The effects of irradiation on fracture toughness will also be discussed.
||Planned: A print-only volume