Shear bands in metallic glasses are not necessarily hot

Authors

Stephanie K. Slaughter, Johns Hopkins UniversityFollow
Felicitee Kertis, Johns Hopkins UniversityFollow
Erin Deda, Johns Hopkins UniversityFollow
Xiaojun Gu, Bucknell University
Wendelin J. Wright, Bucknell UniversityFollow
Todd C. Hufnagel, Johns Hopkins UniversityFollow

Publication Date

9-10-2014

Description

We have used the fusible tin coating method to detect shear band heating in amorphous Zr₅₇Ti₅Cu₂₀Ni₈Al₁₀ loaded under quasi-static uniaxial compression. High-rate load data allowed a precise determination of the duration of shearing events and final fracture. When loading was halted prior to fracture we saw no evidence of melted tin despite the presence of shear offsets up to 6μm on some shear bands. Samples loaded to fracture showed evidence of tin melting near the fracture surface. We attribute the difference to the duration of the events, which is much longer for shear banding (milliseconds) than for fracture (microseconds).

Journal

APL Materials

Volume

2

First Page

096110

Department

Mechanical Engineering

Link to Published Version

http://scitation.aip.org/content/aip/journal/aplmater/2/9/10.1063/1.4895605

DOI

http://dx.doi.org/10.1063/1.4895605

Recommended Citation

Slaughter, Stephanie K.; Kertis, Felicitee; Deda, Erin; Gu, Xiaojun; Wright, Wendelin J.; and Hufnagel, Todd C.. "Shear bands in metallic glasses are not necessarily hot." APL Materials (2014) : 096110.