Abstract
This study reviews dynamic deformation behavior of ultra-fine-grained Al alloys, ultra-fine-grained conventional low carbon steel and dual phase steel and Zr-based amorphous alloys. Dynamic tests were conducted using a Kolsky bar then the test data was analyzed in relation to resultant microstructures, mechanical properties and propensity of adiabatic shear band. In addition, deformed microstructures and fracture surfaces were used to investigate the behavior of both the dynamic deformation and fracture, and adiabatic shear banding. As a result, increasing microstructural homogeneity, strain hardenability and forming multiple shear bands could be a better way to increase the fracture resistance under dynamic loading as the formation of adiabatic shear bands was reduced or prevented.
| Translated title of the contribution | Toward Improving the Dynamic Deformation Properties of Metallic Materials via Role of Microstructure Factor |
|---|---|
| Original language | Korean |
| Pages (from-to) | 247-254 |
| Number of pages | 8 |
| Journal | 소성가공학회지 |
| Volume | 30 |
| Issue number | 5 |
| DOIs | |
| State | Published - 2021 |