About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
30 Years of Nanoindentation with the Oliver-Pharr Method and Beyond
|
| Presentation Title |
High-temperature Scanning Indentation: A New Technique to Assess Microstructural Changes Along Thermal Ramping |
| Author(s) |
Gabrielle Tiphene, Paul Baral, Solène Comby-Dassonneville, Gaylord Guillonneau, Guillaume Kermouche, Jean-Michel Bergheau, Warren Oliver, Jean-Luc Loubet |
| On-Site Speaker (Planned) |
Gabrielle Tiphene |
| Abstract Scope |
Thanks to recent developments in high temperature nanoindentation testing, investigation of thermally activated mechanisms at small length scales can now be conducted [1]. In-situ anisothermal measurements at the micron-scale of hardness, Young modulus and creep properties are now feasible. The development of the High Temperature Scanning Indentation [2] technique, based on a specific high-speed loading procedure, allows quasi-continuous determination of those properties in temperature in only few hours. We focus here on cold-rolled pure aluminum that undergoes static recovery and recrystallization during an annealing thermal cycle. Hardness upon heating and cooling varies in a different manner, pointing out the occurrence of those phenomena upon heating. Part of the observed hardness drop was related to recrystallization, assessed by post-mortem EBSD microstructural characterizations. Modeling of those phenomena was carried out to characterize their kinetics.
[1] Baral et al., Materials and Design, (2018)
[2] Tiphéne et al., Journal of Material Research, (2021) |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Other, Other |