Evading brittle fracture in submicron-sized high entropy intermetallics in dual-phase eutectic microstructure
Related Research Unit(s)
|Journal / Publication||Scripta Materialia|
|Online published||23 Jun 2020|
|Publication status||Published - Oct 2020|
|Link to Scopus||https://www.scopus.com/record/display.uri?eid=2-s2.0-85086712108&origin=recordpage|
Conventional Laves phase is extremely brittle at room temperature. However, through a systematic study, we showed that the quinary Co-Cr-Fe-Ni-Nb Laves phase in a eutectic high entropy alloy (EHEA) can be plastically deformed at room temperature when its size is refined below 200 nm. Based on our current results, we propose a general micromechanical model that not only explains the suppression of cracks in the high entropy Laves phase but also enables the extraction of its fracture toughness even when the high entropy Laves phase deforms and cracks in a dual-phase microstructure.
- Eutectic high entropy alloy, Laves phase, Micromechanical modelling, Plastic flow
Scripta Materialia, Vol. 187, 10.2020, p. 280-284.
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review