About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
High Entropy Alloys VIII
|
Presentation Title |
Non-equiatomic, Multi-phase TRIP/TWIP Multi-principal Element Alloys |
Author(s) |
Amy J. Clarke, Francisco Coury, John Copley, Yaofeng Guo, Jonah Klemm-Toole, Benjamin Ellyson, Jinling Gao, Chandler Gus Becker, Brian Milligan, Christopher Finfrock, Chloe Johnson, Kester Clarke, Wayne Chen, Niranjan Parab, Tao Sun, Kamel Fezzaa, Michael Kaufman |
On-Site Speaker (Planned) |
Amy J. Clarke |
Abstract Scope |
Multi-principal element alloys (MPEAs), without a primary alloying addition like conventional alloys, are stimulating the exploration of novel alloying, microstructure, and property designs. Although MPEAs with remarkable properties have been reported, the focus to date has primarily been on the quest for single-phase, equiatomic alloys that exhibit solid solution strengthening. Yet, opportunity exists to find non-equiatomic alloys with maximized solid solution strengthening and non-equiatomic alloys with multi-phase microstructures that exhibit additional strengthening mechanisms. Here we focus on high-throughput, thermodynamic modeling to predict non-equiatomic Co-Cr-Ni alloys that exhibit TRansformation Induced Plasticity (TRIP) and/or TWinning Induced Plasticity (TWIP) to improve toughness for blast resistance. We seek to fundamentally understand TRIP/TWIP deformation mechanisms as a function of strain rate by in-situ synchrotron x-ray imaging and/or diffraction during quasi-static and/or dynamic compression and tensile testing, along with complementary ex-situ microstructural and mechanical characterization, to ultimately design microstructural and mechanical response. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume |