Paper Title:
Superplastic Deformation and Thermal Crystallization Behavior of Supercooled Liquid in Zr-Ni Based Metallic Glass
  Abstract

Superplastic viscous deformation and thermal crystallization behavior of supercooled liquid in Zr60.0Al15.0Ni25.0 metallic glass were investigated. The temperature interval of the supercooled liquid region (∆Tx) was 83 K. The supercooled liquid showed significant viscous plasticity, resulting in large elongation and high strain rate deformation. The stress-strain behavior can be classified into three types: stress overshoot, stable viscous flow with constant flow stress and strain hardening. The strain hardening is due to the precipitation of Zr6Al2Ni crystalline phase with ellipsoidal morphology. Superplastic viscous deformation behavior is very sensitive to thermal crystallization as well as to deformation temperature and strain rate.

  Info
Periodical
Edited by
Yukichi Umakoshi and Shinji Fujimoto
Pages
37-40
DOI
10.4028/www.scientific.net/MSF.512.37
Citation
T. Nagase, M. Nakamura, Y. Umakoshi, "Superplastic Deformation and Thermal Crystallization Behavior of Supercooled Liquid in Zr-Ni Based Metallic Glass", Materials Science Forum, Vol. 512, pp. 37-40, 2006
Online since
April 2006
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Price
$32.00
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