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Title: Evaluation of the relationship between the effective strain and the springback behavior during the deformation of metallic glass ribbons

Abstract

We evaluated the role of effective strain on the plasticity of metallic glasses related to springback phenomena in both ductile Zr-based metallic glass and brittle Hf-based metallic glass. Experimental investigations of the deformation behavior and the intrinsic mechanical properties of metallic glass were performed by room temperature L-bending deformation. The modeling analysis clearly shows that an inhomogeneous effective strain for initiating shear band is generated during deformation, with the brittleness of a metallic glass being dependent on the effective strain reaching the critical fracture strain of the glass. The combined experimental and modeling results reveal broad and general criteria that should allow for deformability of a wide-variety of glass-forming alloys by adjusting the effective strain during deformation.

Authors:
 [1];  [2];  [1];  [3];  [4]
  1. Ames Laboratory
  2. Samsung Electronics Co., LTD
  3. Korea Institute of Industrial Technology
  4. Institute for Complex Materials
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1163976
Report Number(s):
IS-J 8439
Journal ID: ISSN 0003-6951; APPLAB
DOE Contract Number:
DE-AC02-07CH11358
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 6
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Lee, M H, Park, E S, Ott, R T, Kim, B S, and Eckert, J. Evaluation of the relationship between the effective strain and the springback behavior during the deformation of metallic glass ribbons. United States: N. p., 2014. Web. doi:10.1063/1.4893159.
Lee, M H, Park, E S, Ott, R T, Kim, B S, & Eckert, J. Evaluation of the relationship between the effective strain and the springback behavior during the deformation of metallic glass ribbons. United States. doi:10.1063/1.4893159.
Lee, M H, Park, E S, Ott, R T, Kim, B S, and Eckert, J. Mon . "Evaluation of the relationship between the effective strain and the springback behavior during the deformation of metallic glass ribbons". United States. doi:10.1063/1.4893159.
@article{osti_1163976,
title = {Evaluation of the relationship between the effective strain and the springback behavior during the deformation of metallic glass ribbons},
author = {Lee, M H and Park, E S and Ott, R T and Kim, B S and Eckert, J},
abstractNote = {We evaluated the role of effective strain on the plasticity of metallic glasses related to springback phenomena in both ductile Zr-based metallic glass and brittle Hf-based metallic glass. Experimental investigations of the deformation behavior and the intrinsic mechanical properties of metallic glass were performed by room temperature L-bending deformation. The modeling analysis clearly shows that an inhomogeneous effective strain for initiating shear band is generated during deformation, with the brittleness of a metallic glass being dependent on the effective strain reaching the critical fracture strain of the glass. The combined experimental and modeling results reveal broad and general criteria that should allow for deformability of a wide-variety of glass-forming alloys by adjusting the effective strain during deformation.},
doi = {10.1063/1.4893159},
journal = {Applied Physics Letters},
number = 6,
volume = 105,
place = {United States},
year = {Mon Aug 11 00:00:00 EDT 2014},
month = {Mon Aug 11 00:00:00 EDT 2014}
}