@inproceedings{8cc5227770ca4997a297efa011d9acfb,
title = "Effects of chemical composition and test conditions on the dynamic tensile response of Zr-based metallic glasses",
abstract = "The effects of impact velocity and temperature on the dynamic mechanical behavior of two bulk metallic (BMG) alloys with slightly different elemental compositions (Zr55Cu30Ni5Al30 and Zr46Cu38Ag8Al38) have been investigated. Bullet-shaped samples were accelerated by a gas gun to speeds in the 400∼600m/s range and tested at both room temperature and 250°C. The samples impacted steel extrusion dies which subjected the bullets to high strains at relatively high strain-rates. The extruded fragments were subsequently soft recovered by using low density foams and examined by means of optical/scanning electron microscopy and differential scanning calorimetry. It was found that shear banding was the dictating mechanism responsible for the fracture of all BMGs. At room temperature, the Zr55Cu30Ni5Al30 alloy exhibited a higher resistance to fragmentation than the Zr46Cu38Ag8Al38 alloy. At 250 °C, significant melting was observed in the recovered fragments of both alloys, which indicates that the BMG glassy structure undergoes a melting process and deformation likely occurs homogeneously.",
author = "F. Wang and K. Laws and D. Martinez and Trujillo, {C. P.} and Brown, {A. D.} and Cerreta, {E. K.} and Hazell, {P. J.} and M. Ferry and Quadir, {M. Z.} and J. Jiang and Escobedo, {J. P.}",
year = "2017",
month = jan,
day = "13",
doi = "10.1063/1.4971656",
language = "English",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
editor = "Ramon Ravelo and Thomas Sewell and Ricky Chau and Timothy Germann and Oleynik, {Ivan I.} and Suhithi Peiris",
booktitle = "Shock Compression of Condensed Matter - 2015",
address = "United States",
note = "19th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2015 ; Conference date: 14-06-2015 Through 19-06-2015",
}
