| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Structure-Property Relationships of Bulk Metallic Glasses
|
| Presentation Title |
Development of Zr-based Metallic Glasses to Utilize Thermoplastic Forming Processes for Engineering Plastics |
| Author(s) |
W.H. Ryu, K.J. Kim, M.K. Kwak, C.W. Ryu, Eun Soo Park |
| On-Site Speaker (Planned) |
Eun Soo Park |
| Abstract Scope |
Metallic glasses(MGs) have gained attention as potential structural materials, but their high processing costs hinder commercialization. This research focuses on how to reduce produc-tion costs through tailored alloy design and precise control of thermoplastic forming(TPF) process parameters. The challenge of maintaining a wide TPF window in Be-free Zr-based MGs while keeping glass transition temperature(Tg) low was addressed. Be-free Zr-rich mul-ticomponent MGs were developed with Tg below 350 °C and a wide TPF window over 70 K, enabling excellent thermoplastic formability(TPFA). Remarkably, these MGs exhibited lower Tg than advanced engineering plastics like Polyimide, expanding the TPF process to MGs. Flash-DSC was employed to identify the TPF window and TPFA parameters based on heating rates. The findings indicate that even marginal MGs have an advantage in manufacturing mi-cro-to-nano scale products at ultra-fast heating rates, akin to advanced engineering plastics. This work inspires further exploration of MGs as practical materials for industrial applica-tions. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Phase Transformations, Shaping and Forming, Sustainability |