Paper Title:
Room Temperature Plasticity of Zr65Al7.5Ni10Cu17.5-xPdx Bulk Metallic Glasses
  Abstract

Monolithic Zr65Al7.5Ni10Pd17.5 and Zr65Al7.5Ni10Cu17.5 hardly had plastic deformability in tension at room temperature, although Zr65Al7.5Ni10Pd17.5 showed a large plastic strain in compression. A depressed zone that is the evidence of viscous flow deformation (so-called viscous flow depression zone; VFD-zone) was observed for Zr65Al7.5Ni10Pd17.5 around the edge at the point of failure on its specimen surfaces. However, no VFD-zone was seen for Zr65Al7.5Ni10Cu17.5. Thus, a clear difference in tensile plastic behavior was found between Zr65Al7.5Ni10Pd17.5 and Zr65Al7.5Ni10Cu17.5. A structural change in the vicinity of the fracture surface of Zr65Al7.5Ni10Pd17.5 was measured by micro-beam X-ray diffractometry (MB-XRD). We may be able to discuss the room temperature plasticity of Zr65Al7.5Ni10Cu17.5-xPdx bulk metallic glasses correlating with the phase stability of the amorphous and icosahedral quasi-crystalline phases.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
2054-2058
DOI
10.4028/www.scientific.net/MSF.539-543.2054
Citation
K. Yoshimi, H. Kato, J. Saida, A. Inoue, "Room Temperature Plasticity of Zr65Al7.5Ni10Cu17.5-xPdx Bulk Metallic Glasses", Materials Science Forum, Vols. 539-543, pp. 2054-2058, 2007
Online since
March 2007
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