Effect of the compositional modulation on the plasticity of amorphous alloys: Shear localization viewpoint interpretation

Mi Rim Lee; Kyoung Won Park; Hyun Je Sa; Jae Chul Lee

Effect of the compositional modulation on the plasticity of amorphous alloys: Shear localization viewpoint interpretation

Mi Rim Lee, Kyoung Won Park, Hyun Je Sa, Jae Chul Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Experiments have demonstrated that a moderate amount of Be added to Zr _57.5Cu_38.3Al_4.2 amorphous alloy enhances the plasticity of the alloy. In particular, Zr₅₄Cu₃₆Al ₄Be₆ alloy exhibited 19% of strain to fracture along with a strength exceeding 2 GPa. Energy dispersive x-ray spectroscopy conducted on the Zr₅₄Cu₃₆Al₄Be₆ alloy exhibited the presence of compositional modulation, indicating that nm-scale phase separation had occurred at local regions. In this study, the role played by the nm-scale phase separation on the plasticity was investigated in terms of structural disordering, structural softening and shear localization in order to better understand the structural origin of the enhanced plasticity shown by the developed alloy.

Original language	English
Pages (from-to)	687-693
Number of pages	7
Journal	Journal of Korean Institute of Metals and Materials
Volume	47
Issue number	11
Publication status	Published - 2009

Keywords

Amorphous alloy
Phase-separation
Plasticity
Shear localization
Structural disordering

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Modelling and Simulation
Surfaces, Coatings and Films
Metals and Alloys

Cite this

@article{3958a0ba5a90487f94545245973a6122,

title = "Effect of the compositional modulation on the plasticity of amorphous alloys: Shear localization viewpoint interpretation",

abstract = "Experiments have demonstrated that a moderate amount of Be added to Zr 57.5Cu38.3Al4.2 amorphous alloy enhances the plasticity of the alloy. In particular, Zr54Cu36Al 4Be6 alloy exhibited 19% of strain to fracture along with a strength exceeding 2 GPa. Energy dispersive x-ray spectroscopy conducted on the Zr54Cu36Al4Be6 alloy exhibited the presence of compositional modulation, indicating that nm-scale phase separation had occurred at local regions. In this study, the role played by the nm-scale phase separation on the plasticity was investigated in terms of structural disordering, structural softening and shear localization in order to better understand the structural origin of the enhanced plasticity shown by the developed alloy.",

keywords = "Amorphous alloy, Phase-separation, Plasticity, Shear localization, Structural disordering",

author = "Lee, {Mi Rim} and Park, {Kyoung Won} and Sa, {Hyun Je} and Lee, {Jae Chul}",

year = "2009",

language = "English",

volume = "47",

pages = "687--693",

journal = "Journal of Korean Institute of Metals and Materials",

issn = "1738-8228",

publisher = "Korean Institute of Metals and Materials",

number = "11",

}

TY - JOUR

T1 - Effect of the compositional modulation on the plasticity of amorphous alloys

T2 - Shear localization viewpoint interpretation

AU - Lee, Mi Rim

AU - Park, Kyoung Won

AU - Sa, Hyun Je

AU - Lee, Jae Chul

PY - 2009

Y1 - 2009

N2 - Experiments have demonstrated that a moderate amount of Be added to Zr 57.5Cu38.3Al4.2 amorphous alloy enhances the plasticity of the alloy. In particular, Zr54Cu36Al 4Be6 alloy exhibited 19% of strain to fracture along with a strength exceeding 2 GPa. Energy dispersive x-ray spectroscopy conducted on the Zr54Cu36Al4Be6 alloy exhibited the presence of compositional modulation, indicating that nm-scale phase separation had occurred at local regions. In this study, the role played by the nm-scale phase separation on the plasticity was investigated in terms of structural disordering, structural softening and shear localization in order to better understand the structural origin of the enhanced plasticity shown by the developed alloy.

AB - Experiments have demonstrated that a moderate amount of Be added to Zr 57.5Cu38.3Al4.2 amorphous alloy enhances the plasticity of the alloy. In particular, Zr54Cu36Al 4Be6 alloy exhibited 19% of strain to fracture along with a strength exceeding 2 GPa. Energy dispersive x-ray spectroscopy conducted on the Zr54Cu36Al4Be6 alloy exhibited the presence of compositional modulation, indicating that nm-scale phase separation had occurred at local regions. In this study, the role played by the nm-scale phase separation on the plasticity was investigated in terms of structural disordering, structural softening and shear localization in order to better understand the structural origin of the enhanced plasticity shown by the developed alloy.

KW - Amorphous alloy

KW - Phase-separation

KW - Plasticity

KW - Shear localization

KW - Structural disordering

UR - http://www.scopus.com/inward/record.url?scp=73349129960&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:73349129960

SN - 1738-8228

VL - 47

SP - 687

EP - 693

JO - Journal of Korean Institute of Metals and Materials

JF - Journal of Korean Institute of Metals and Materials

IS - 11

ER -

Effect of the compositional modulation on the plasticity of amorphous alloys: Shear localization viewpoint interpretation

Abstract

Keywords

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this