Deformation and Failure of Zr57Ti5Cu20Ni8Al10 Bulk Metallic Glass Under Quasi-static and Dynamic Compression
- 1 June 2002
- journal article
- Published by Springer Science and Business Media LLC in Journal of Materials Research
- Vol. 17 (6), 1441-1445
- https://doi.org/10.1557/jmr.2002.0214
Abstract
We have examined the mechanical behavior of Zr57Ti5Cu20Ni8Al10 bulk metallic glass under uniaxial compression at strain rates from 10−4to 3 × 103 s−1. The failure stress decreases with increasing strain rate, and shear-band formation remains the dominant deformation mechanism. A consideration of basic properties of adiabatic shear bands makes it appear unlikely that shear bands formed under quasi-static loading are adiabatic; in the dynamic case, the time scales of deformation and thermal conduction are similar, indicating that a more sophisticated calculation is required. In the dynamic tests, however, high-speed cinematography reveals evidence that the mechanism of failure involves an adiabatic component.Keywords
This publication has 12 references indexed in Scilit:
- Bulk Glass-Forming Metallic Alloys: Science and TechnologyMRS Bulletin, 1999
- Light emission during fracture of a Zr–Ti–Ni–Cu–Be bulk metallic glassApplied Physics Letters, 1999
- Local heating associated with crack tip plasticity in Zr–Ti–Ni–Cu–Be bulk amorphous metalsJournal of Materials Research, 1999
- Fracture toughness and notched toughness of bulk amorphous alloy: Zr-Ti-Ni-Cu-BeScripta Materialia, 1998
- Fracture toughness and fatigue-crack propagation in a Zr–Ti–Ni–Cu–Be bulk metallic glassApplied Physics Letters, 1997
- The dynamic compressive behavior of beryllium bearing bulk metallic glassesJournal of Materials Research, 1996
- A micromechanical model for high strain rate behavior of ceramicsInternational Journal of Solids and Structures, 1995
- Quasi-static constitutive behavior of Zr41.25Ti13.75Ni10Cu12.5Be22.5 bulk amorphous alloysScripta Metallurgica et Materialia, 1994
- The rate-dependent deformation of a tungsten heavy alloyMaterials Science and Engineering: A, 1991
- The structure of shear bands in metallic glassesActa Metallurgica, 1981