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Advances in Materials Science and Engineering
Volume 2014 (2014), Article ID 215093, 5 pages
http://dx.doi.org/10.1155/2014/215093
Research Article

Investigation of Mechanical Properties and Plastic Deformation Behavior of (Ti45Cu40Zr10Ni5)100−xAlx Metallic Glasses by Nanoindentation

State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China

Received 21 February 2014; Accepted 1 July 2014; Published 17 July 2014

Academic Editor: Yang Shao

Copyright © 2014 Lanping Huang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The effect of Al addition on mechanical properties and plastic deformation behavior of (Ti45Cu40Zr10Ni5)100−xAlx (x = 0, 2, 4, 6 and 8) amorphous alloy ribbons have been investigated by nanoindentation. The hardness and elastic modulus do not simply increase with the increase of Al content. The alloy with 8 at.% Al exhibits the highest hardness and elastic modulus. The serrations or pop-in events are strongly dependent on the loading rate and alloy composition.