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

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.
 [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:
OSTI Identifier:
Report Number(s):
IS-J 8439
Journal ID: ISSN 0003-6951; APPLAB
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 6
American Institute of Physics (AIP)
Research Org:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States