About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Radiation Effects in Metals and Ceramics
|
Presentation Title |
Studies of High dpa Ion Beam Irradiation fcc-bcc Duplex Steel 2205: Micromechanical Testing and Nanoindentation Examination of Hardness Variations |
Author(s) |
Michael Saleh, Alan Xu, Paul Munroe, Dhriti Bhattacharyya |
On-Site Speaker (Planned) |
Michael Saleh |
Abstract Scope |
Irradiation of metals and alloys causes the formation of defects such as vacancy and interstitial clusters, dislocation loops, voids, bubbles, etc. which results in pronounced hardening depending on the irradiation and testing temperature.
The current study focuses on ion beam irradiation of Duplex steel 2205 with 12 MeV Au+5 ions. Post irradiation studies of the micromechanical behaviour are done through nano-indentation. This allows for estimates of moduli and relative estimates of the strengths and hardening of individual phases and individual grains within a multiphase alloy. The results show the increase in hardness of the Duplex steel 2205 (bcc/fcc phases) to be phase dependent with the fcc phase exhibiting greater hardening. Coupling these results to micromechanical tensile tests and crystal plasticity modelling, the authors describe the role of multi-scale modelling in complementing micromechanical testing for irradiation studies. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |