|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Accelerated Materials Evaluation for Nuclear Application Utilizing Test Reactors, Ion Beam Facilities and Integrated Modeling
||Localized Helium Implantation Utilizing a Helium Ion Beam Microscope to Evaluate Swelling and Mechanical Property Changes.
||Peter Hosemann, David Frazer, Yun Yang, Mehdi Balooch, Manfred Ambad
|On-Site Speaker (Planned)
Helium ion beam irradiation has been utilized to study a materials response due to either Helium plasma impact or n.α reactions during neutron irradiations. In this work we utilize a Helium ion beam microscope for highly localized Helium implantation as a fast turnaround tool to cause the implantation damage. Post irradiation examination using atomic force microscopy on Cu allows to quantify volumetric swelling and its root cause while nanoindentation measurements allow to correlate mechanical properties with the microstructural changes. It is found that at a dose of ~7.5E17 He/cm2 the initial Helium bubbles ,experience void character and the swelling measured is significantly more than what is expected due to helium impact alone suggesting void growth. The elastic properties measured mirror the microstructural changes. Nano compression testing accompanies the initial measurement revealing further insight into the deformation mechanism
||Planned: Supplemental Proceedings volume