About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Bulk Metallic Glasses XX
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Presentation Title |
Construction of Three-dimensional Deformation Sequence Map in Bulk Metallic Glasses |
Author(s) |
Wook Ha Ryu, Won-Seok Ko , Haruka Isano, Rui Yamada , Heh Sang Ahn , Geun Hee Yoo , Kook Noh Yoon, Junji Saida, Eun Soo Park |
On-Site Speaker (Planned) |
Eun Soo Park |
Abstract Scope |
Herein, we systematically investigate the compressive plasticity and shear band (SB) behavior of the Zr-based bulk metallic glasses (BMG) with various combinations of Poisson’s ratio, aspect ratio, and contact friction. First, we propose three stages of plastic flow through quantitative analysis of serrated flow: (stage I) apparent hardening region with the stochastic serrated flow, (stage II) constant yielding region with the steady-state serrated flow, (stage III) macroscopic softening region with the confined serrated flow. Secondly, we construct a three-dimensional deformation sequence map that reflects the key variables for SB behavior, and the map can explain how to stabilize stage II (or destabilize stage III) by simultaneously considering the influence of the variables. We carefully discuss how to design BMG to be deformable like ductile crystalline alloys. Our study paves the way for the development of sustainable BMGs with a predictable deformation behavior by tailoring the key variables for SB behavior. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, |