Correlation between fracture surface morphology and toughness in Zr-based bulk metallic glasses
- Correlation between fracture surface morphology and toughness in Zr-based bulk metallic glasses
- 서진유; R. Dale Conner; C. Paul Kim; Marios D. Demetrious; William L. Johnson
- amorphous metal; metallic glass; fracture; fracture surface; shear band
- Issue Date
- Journal of materials research
- VOL 25, NO 5, 982-990
- Fracture surfaces of Zr-based bulk metallic glasses of various compositions tested in
the as-cast and annealed conditions were analyzed using scanning electron microscopy.
The tougher samples have shown highly jagged patterns at the beginning stage of crack
propagation, and the length and roughness of this jagged pattern correlate well with the
measured fracture toughness values. These jagged patterns, the main source of energy
dissipation in the sample, are attributed to the formation of shear bands inside the sample.
This observation provides strong evidence of significant “plastic zone” screening at the
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.