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Title: Bulk and Micro-Scale Compressive Properties of a Pd-based Bulk Metallic Glass

Abstract

We present quasi-static, room temperature compression data for Pd{sub 40}Ni{sub 40}P{sub 20} metallic glasses for both bulk and microscale specimens. At all sizes, plastic flow is localized in shear bands which are accompanied by sudden strain bursts in the microscale tests. We show a modest ({approx} 9%) increase in the 0.2% offset yield strength in going from bulk specimens to the smallest measured ({approx} 2 {micro}m), and attribute this increase to the effect of defects on shear band initiation, rather than to an intrinsic length scale dependence of plastic deformation.

Authors:
 [1];  [2];  [1];  [3];  [4];  [3];  [3]
  1. U.S. Army research Laboratory, Adelphi, MD
  2. University of North Carolina, Charlotte
  3. Johns Hopkins University
  4. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Shared Research Equipment Collaborative Research Center
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
936033
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Scripta Materialia; Journal Volume: 57; Journal Issue: 6
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPRESSION; DEFECTS; DEFORMATION; GLASS; METALLIC GLASSES; PLASTICS; SHEAR; STRAINS; YIELD STRENGTH

Citation Formats

Schuster, Brian E., Wei, Qiuming, Ervin, Mathew H., Hruszkewycz, Stephan, Miller, Michael K, Hufnagel, Todd C., and Ramesh, Kaliat T.. Bulk and Micro-Scale Compressive Properties of a Pd-based Bulk Metallic Glass. United States: N. p., 2007. Web. doi:10.1016/j.scriptamat.2007.05.025.
Schuster, Brian E., Wei, Qiuming, Ervin, Mathew H., Hruszkewycz, Stephan, Miller, Michael K, Hufnagel, Todd C., & Ramesh, Kaliat T.. Bulk and Micro-Scale Compressive Properties of a Pd-based Bulk Metallic Glass. United States. doi:10.1016/j.scriptamat.2007.05.025.
Schuster, Brian E., Wei, Qiuming, Ervin, Mathew H., Hruszkewycz, Stephan, Miller, Michael K, Hufnagel, Todd C., and Ramesh, Kaliat T.. Mon . "Bulk and Micro-Scale Compressive Properties of a Pd-based Bulk Metallic Glass". United States. doi:10.1016/j.scriptamat.2007.05.025.
@article{osti_936033,
title = {Bulk and Micro-Scale Compressive Properties of a Pd-based Bulk Metallic Glass},
author = {Schuster, Brian E. and Wei, Qiuming and Ervin, Mathew H. and Hruszkewycz, Stephan and Miller, Michael K and Hufnagel, Todd C. and Ramesh, Kaliat T.},
abstractNote = {We present quasi-static, room temperature compression data for Pd{sub 40}Ni{sub 40}P{sub 20} metallic glasses for both bulk and microscale specimens. At all sizes, plastic flow is localized in shear bands which are accompanied by sudden strain bursts in the microscale tests. We show a modest ({approx} 9%) increase in the 0.2% offset yield strength in going from bulk specimens to the smallest measured ({approx} 2 {micro}m), and attribute this increase to the effect of defects on shear band initiation, rather than to an intrinsic length scale dependence of plastic deformation.},
doi = {10.1016/j.scriptamat.2007.05.025},
journal = {Scripta Materialia},
number = 6,
volume = 57,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}