Improvement of the plasticity of bulk amorphous alloys via a low-angle shear-deforming process

CM Lee, SC Lee, SY Shin, NJ Kim, JC Lee - Materials Science and …, 2008 - Elsevier
This study examined the fundamental issue of whether an elastic shear stress imposed on
an amorphous alloy causes structural changes during the process of quasistatic loading. A …

Plasticity improvement of a bulk amorphous alloy based on its viscoelastic nature

CM Lee, KW Park, JC Lee - Scripta materialia, 2008 - Elsevier
This study examines the fundamental issue of whether an elastic shear stress imposed on
amorphous alloys causes structural changes during quasistatic loading. In order to deliver …

Plasticity enhancement of bulk amorphous alloys via equal channel angular pressing

CM Lee, SY Shin, NJ Kim, JC Lee - Journal of Korean Institute of …, 2007 - pure.korea.ac.kr
This study investigated the effect of excess free volume generated by the application of
elastic shear stress on the mechanical properties of bulk amorphous alloys. A shear …

Irreversible structural change induced by elastostatic stress imposed on an amorphous alloy and its influence on the mechanical properties

SJ Lee, BG Yoo, JI Jang, JC Lee - Metals and Materials International, 2008 - Springer
The elastic deformation behaviors of bulk amorphous alloys during elastostatic compression
were examined. Depending on the alloy deformation characteristics, the elasticity of …

Enhanced plasticity of bulk amorphous alloys at cryogenic temperature

KS Yoon, M Lee, JC Lee - Journal of Korean Institute of Metals and …, 2010 - pure.korea.ac.kr
We investigated the cryogenic temperature plasticity of a bulk amorphous alloy. Experiments
showed that as temperature decreases, the plasticity of the alloy increases, such that the …

A methodology of enhancing the plasticity of amorphous alloys: Elastostatic compression at room temperature

KW Park, CM Lee, HJ Kim, JH Lee, JC Lee - Materials Science and …, 2009 - Elsevier
This study demonstrates that prolonged elastostatic compression imposed on amorphous
alloys at room temperature induces permanent (homogeneous) deformation associated with …

Microstructural evolution of an elastostatically compressed amorphous alloy and its influence on the mechanical properties

SC Lee, CM Lee, JW Yang, JC Lee - Scripta Materialia, 2008 - Elsevier
This paper discusses whether or not permanent deformation occurs even at a stress level
below the yield strength. The application of an elastostatic stress causes deformation on an …

Plasticity of amorphous alloys: 2. Inhomogeneous deformation

KW Park, CM Lee, JC Lee - JOURNAL OF THE KOREAN …, 2009 - scholar.korea.ac.kr
Studies of a number of Cu-Zr amorphous alloys have demonstrated that those exhibiting
greater plastic strain during homogeneous deformation at room temperature show lower …

Plasticity of amorphous alloys: 1. Homogeneous deformation

KW Park, CM Lee, JC Lee - Journal of the Korean Institute of …, 2009 - scholar.korea.ac.kr
Amorphous alloys, in addition to being promising materials for a variety of practical
applications, provide an excellent test bed for evaluating our understanding of the …

Shear localization and the plasticity of bulk amorphous alloys

KW Park, Y Shibutani, ML Falk, BJ Lee, JC Lee - Scripta Materialia, 2010 - Elsevier
We explore the microstructural aspects of alloys that affect structural disordering,
deformation-induced softening and shear localization during homogeneous deformation, in …