|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Mechanical Behavior at the Nanoscale III
||In Situ TEM Characterization on Deformation of FeCoNiMnCr High Entropy Alloy
||Qian Yu, ZiJiao Zhang, Jiangwei Wang, Scott X. Mao, Robert O. Ritchie
|On-Site Speaker (Planned)
In situ transmission electron microscopy (TEM) nanomechanical testing has recently led to new insight into the deformation mechanisms of a wider range of metals and alloys, as well as measurements of unusual mechanical properties at small scale. Here we describe this recent progress through highlights of recent findings on the deformation of a FeCoNiMnCr high entropy alloy (HEA) at nanoscale. In this study, synergic of multiple types of deformation modes at different stages was observed, which provides an effective intrinsic mechanism to enhance the toughness, in significantly different from the previous toughening strategies via precipitates or boundaries. Such synergic of multiple deformation mechanisms is considered as the origin of the ultra-high toughness in this HEA.
||Planned: A print-only volume