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

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 amorphous alloy in such a manner that its deformation behavior is characterized by ideal elasticity, anelasticity, and...

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Bibliographic Details
Published in:Scripta materialia 2008-04, Vol.58 (7), p.591-594
Main Authors: Lee, Sang-Chul, Lee, Chang-Myun, Yang, Jae-Woong, Lee, Jae-Chul
Format: Article
Language:English
Subjects:
Amorphous alloys
Bulk amorphous alloy
Deformation
Elastostatics
Free volume
Metallic glasses
Microstructure
Plasticity
Static loading
Stresses
Viscoelasticity
Yield strength
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Summary: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 amorphous alloy in such a manner that its deformation behavior is characterized by ideal elasticity, anelasticity, and viscoelasticity. Among the strain components, viscoelasticity caused irreversible structural changes even after removing the applied stress. These behaviors were analyzed from the perspective of the microstructural changes characterized by the generation of free volume.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2007.11.036