Shear punch tests for a bulk metallic glass


Guduru R. K. , DARLING K. A. , SCATTERGOOD R. O. , KOCH C. C. , MURTY K. L. , Bakkal M. , ...More

INTERMETALLICS, vol.14, no.12, pp.1411-1416, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 14 Issue: 12
  • Publication Date: 2006
  • Doi Number: 10.1016/j.intermet.2006.01.052
  • Title of Journal : INTERMETALLICS
  • Page Numbers: pp.1411-1416
  • Keywords: glasses metallic, mechanical properties at ambient temperature, fracture stress, mechanical properties, theory, mechanical testing, SERRATED PLASTIC-FLOW, MECHANICAL-PROPERTIES, STRAIN-RATE, DEFORMATION, BEHAVIOR, FRACTURE, NANOINDENTATION, DUCTILITY, STRENGTH, BANDS

Abstract

A shear punch test technique was used for characterization of the mechanical properties of Zr-5Ti-17.9Cu-14.6Ni-10Al bulk metallic glass. The ultimate shear stress values matched very closely with values derived from uniaxial compression tests reported in the literature. This is consistent with a lack of pressure sensitivity in compression reported for this particular metallic glass. Deformation response was strain rate insensitive up to a critical rate, beyond which softening occurred. The latter was attributed to thermal heating effects. (c) 2006 Elsevier Ltd. All rights reserved.