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History dependent crystallization of Zr41Ti14Cu12Ni10Be23 melts

Schroers, Jan and Johnson, William L. (2000) History dependent crystallization of Zr41Ti14Cu12Ni10Be23 melts. Journal of Applied Physics, 88 (1). pp. 44-48. ISSN 0021-8979. https://resolver.caltech.edu/CaltechAUTHORS:SCHRjap00

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Abstract

The crystallization of Zr41Ti14Cu12Ni10Be23 (Vit 1) melts during constant heating is investigated. (Vit 1) melts are cooled with different rates into the amorphous state and the crystallization temperature upon subsequent heating is studied. In addition, Vit 1 melts are cooled using a constant rate to different temperatures and subsequently heated from this temperature with a constant rate. We investigate the influence of the temperature to which the melt was cooled on the crystallization temperature measured upon heating. In both cases the onset temperature of crystallization shows strong history dependence. This can be explained by an accumulating process during cooling and heating. An attempt is made to consider this process in a simple model by steady state nucleation and subsequent growth of the nuclei which results in different crystallization kinetics during cooling or heating. Calculations show qualitative agreement with the experimental results. However, calculated and experimental results differ quantitatively. This difference can be explained by a decomposition process leading to a nonsteady nucleation rate which continuously increases with decreasing temperature.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1063/1.373621DOIUNSPECIFIED
Additional Information:©2000 American Institute of Physics. (Received 17 January 2000; accepted 30 March 2000) This work was supported by the National Aeronautics and Space Administration (Grant No. NCC8-119) and the Department of Energy (Grant No. DEFG-03086ER45242).
Subject Keywords:ZINC ALLOYS; TITANIUM ALLOYS; COPPER ALLOYS; NICKEL ALLOYS; BERYLLIUM ALLOYS; CRYSTALLIZATION; HEATING; TEMPERATURE DEPENDENCE; COOLING; NUCLEATION; zirconium alloys; metallic glasses; crystallisation; decomposition
Issue or Number:1
Record Number:CaltechAUTHORS:SCHRjap00
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:SCHRjap00
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8540
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:17 Aug 2007
Last Modified:02 Oct 2019 23:52

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