|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Energy Materials 2017: Materials for Nuclear Energy
||Size Effects in Ion-irradiated 800H Steel at High Temperatures Utilizing Nanoindentation and Microcompression Testing
||Anya Prasitthipayong, Shraddha J. Vachhani, Scott J. Tumey, Andrew M. Minor, Peter Hosemann
|On-Site Speaker (Planned)
Small damage layers originating from ion-irradiation necessitate the development of small-scale mechanical testing to evaluate the properties of irradiated materials. However, understanding the influence of mechanical size effects remains a major obstacle for relating nanoscale mechanical measurements from small irradiated volumes to macroscopic mechanical properties. 800H was irradiated with 70 MeV Fe9+ at 4500C to 20.68 dpa and using small-scale testing we investigate the influence of temperature on both the indentation and the sample size effects. At high temperatures, indentation size effects are expected to be less significant due to the larger plastic zone size, while sample size effects are expected to be more pronounced owing to a greater contribution of the source length. This implies that testing methods determine how significant size effects are as temperatures increase. Our study will directly compare these effects using nanoindentation and microcompression at high temperatures, combined with in-situ observations of the deformation mechanisms.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)