|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Advanced Thermo-mechanical Characterization of Materials with Special Emphasis on In Situ Techniques
||In Situ Micro-mechanical Testing of Ion Irradiated Materials
||Dhriti Bhattacharyya, Alan Xu, Lyndon Edwards
|On-Site Speaker (Planned)
The mechanical testing of materials in small volumes, such as those encountered in thin ion- irradiated layers, is of particular interest when this is the only method for assessing the properties of the volume of interest. In situ micro-mechanical testing of these materials inside a scanning electron microscope provides a novel way of imaging the deformation processes during the test and correlating them with the corresponding stress-strain conditions. Here we present the results of quasi-static and strain-rate dependent tests on 12 μm thick single crystal Ni films irradiated with He2+ ions. The effect of orientation on the measured properties is also investigated. Further analysis was performed using the transmission electron microscope to examine samples extracted from the post-test specimens using the focused ion beam. These tests provide valuable insight into the deformation behaviour of ion-irradiated materials and indicate a pathway to developing methodologies for scaling these results to bulk properties.
||Planned: Supplemental Proceedings volume