About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Bulk Metallic Glasses XX
|
Presentation Title |
Effect of Annealing and Cryogenic Treatment on the Size-dependent Deformation Behavior of the Metallic Glass |
Author(s) |
Akib Jabed, Golden Kumar |
On-Site Speaker (Planned) |
Akib Jabed |
Abstract Scope |
Size-effects in deformation behavior of metallic glasses (MGs) have attracted growing interest due to their potential to improving the plasticity. It has been observed that sub-micron sized MGs exhibit homogeneous-like deformation and can accommodate more plastic strain. The mechanism of size-effects in MGs remains controversial because of sample preparation artifacts and limited size range of test specimens. Here, we report fracture behavior of a wide range of MG specimens fabricated by irradiation free thermoplastic drawing. The samples with diameters ranging from 100 nm to 10 µm are tested are tested. The role of structural state on the size-effects is investigated by testing the samples in the as-cast state and after thermal and cryogenic treatments. The effects of sample size and structural state on the fracture morphology and plasticity of MGs are studied. The results are combined to present a unified model for size-effects in deformation behavior of MGs. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, |