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Mechanical Properties of Metallic Glasses
Joint Institute for Neutron Sciences, P. O. Box 2008, MS-6453, Oak Ridge, TN 37831-6453, USA
Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN 36996, USA
Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 36996, USA
Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
* Author to whom correspondence should be addressed.
Received: 27 November 2012; in revised form: 17 January 2013 / Accepted: 28 January 2013 / Published: 31 January 2013
Abstract: Metallic glasses are known for their outstanding mechanical strength. However, the microscopic mechanism of failure in metallic glasses is not well-understood. In this article we discuss elastic, anelastic and plastic behaviors of metallic glasses from the atomistic point of view, based upon recent results by simulations and experiments. Strong structural disorder affects all properties of metallic glasses, but the effects are more profound and intricate for the mechanical properties. In particular we suggest that mechanical failure is an intrinsic behavior of metallic glasses, a consequence of stress-induced glass transition, unlike crystalline solids which fail through the motion of extrinsic lattice defects such as dislocations.
Keywords: metallic glasses; mechanical properties; elasticity, deformation and failure
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Egami, T.; Iwashita, T.; Dmowski, W. Mechanical Properties of Metallic Glasses. Metals 2013, 3, 77-113.
Egami T, Iwashita T, Dmowski W. Mechanical Properties of Metallic Glasses. Metals. 2013; 3(1):77-113.
Egami, Takeshi; Iwashita, Takuya; Dmowski, Wojciech. 2013. "Mechanical Properties of Metallic Glasses." Metals 3, no. 1: 77-113.