| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Structure and Dynamics of Metallic Glasses
|
| Presentation Title |
Improvement of Brittleness by Tailoring a Glassy State Distribution in a Monolithic Metallic Glass Through Thermal Process |
| Author(s) |
Rui Yamada, Wookha Ryu, Haruka Isano, Tomohiro Yoshikawa, Keisuke Tabaru, Junji Saida |
| On-Site Speaker (Planned) |
Rui Yamada |
| Abstract Scope |
Metallic glasses exhibit brittle fracture at room temperature, which has greatly hindered their practical application. It has been recognized that brittleness is strongly related to the glassy state (relaxed or rejuvenated state). Therefore, improvement of brittleness through controlling a glassy state is currently the hot issues to be addressed. In our previous research, it was revealed that the glassy state can be rejuvenated by annealing once relaxed sample to a supercooled liquid state followed by quenching. Moreover, we further extended this process to thermally create glassy state gradient within a monolithic metallic glass and showed that the gradient did affect brittleness of metallic glasses. In the present study, we created glassy state gradient within Zr50Cu40Al10 metallic glassy sample and clarified the gradation creation mechanism in the process. Furthermore, the mechanism of improvement of brittleness in the gradation created sample was discussed by analyzing the Digital Image Correlation (DIC) data. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Characterization, Process Technology |