Document Type
Article
Publication Date
3-24-2012
Journal or Book Title
Metallurgical and Materials Transactions A
Volume
43
Issue
8
First Page
2662
Last Page
2668
DOI
10.1007/s11661-012-1136-2
Abstract
A phase-field model is proposed for phase transformations in glass-forming alloys. The glass transition is introduced as a structural relaxation, and the competition between the glass and crystalline phases is investigated. The simulations are performed for Cu-Zr alloys, employing thermodynamic and kinetic parameters derived from reported thermodynamic modeling and molecular dynamics simulation results,[1–3] respectively. Four distinct phase fields are treated with a multi-phase-field approach, representing the liquid/glass, Cu10Zr7, CuZr, and CuZr2 phases. In addition, a continuum-field method is applied to the liquid to accommodate the liquid–glass transformation. The combined phase-field approach is used to investigate the glass formation tendency, and critical cooling rates are estimated and compared with the reported experimental values.
Rights
Copyright 2012 ASM International. This paper was published in Metallurgical and Materials Transactions A, Vol. 43, Issue 8, pp. 2662-2668 and is made available as an electronic reprint with the permission of ASM International. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplications of any material in this paper for a fee or for commercial purposes, or modification of the content of this paper are prohibited.
Copyright Owner
ASM International
Copyright Date
2012
Language
en
File Format
application/pdf
Recommended Citation
Wang, Tao and Napolitano, Ralph E., "A phase-field model for phase transformations in glass-forming alloys" (2012). Materials Science and Engineering Publications. 170.
https://lib.dr.iastate.edu/mse_pubs/170
Comments
This article is from Metallurgical and Materials Transactions A 43 (2012): 2662, doi:10.1007/s11661-012-1136-2. Posted with permission.