Observation of Bi Coarsening and Dissolution Behaviors in Melting Al–Bi Immiscible Alloy

Using synchrotron radiography, a melting process of the Al-10 wt% Bi immiscible alloy was fully observed, and Bi solute coarsening and dissolution behaviors as well as their effect on the microstructural evolution were also investigated. We found that two different steps including coarsening and dis...

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Bibliographic Details
Published in:Acta metallurgica sinica : English letters 2016-09, Vol.29 (9), p.800-803
Main Authors: Lu, Wen-Quan, Zhang, Shu-Guang, Li, Jian-Guo
Format: Article
Language:English
Subjects:
Alloys
Behavior
Characterization and Evaluation of Materials
Chemistry and Materials Science
Coagulation
Corrosion and Coatings
Dissolution
Droplets
Evolution
Materials Science
Melting
Metallic Materials
Miscibility
Nanotechnology
Organometallic Chemistry
Solidification
Spectroscopy/Spectrometry
Synchrotron radiation
Tribology
Viscosity
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Summary:Using synchrotron radiography, a melting process of the Al-10 wt% Bi immiscible alloy was fully observed, and Bi solute coarsening and dissolution behaviors as well as their effect on the microstructural evolution were also investigated. We found that two different steps including coarsening and dissolution processes can be used to describe the structure evolution in melting Al-10 wt% Bi immiscible alloy. And diffusion coalescence controlled the coalescence of Bi droplets at the early stage of the melting Al-10 wt% Bi immiscible alloy, while the coagulation during movement did at later stage. Also, the larger the droplet, the larger the distance of the steady-state concentration distribution around the droplet.
ISSN:1006-7191
2194-1289
DOI:10.1007/s40195-016-0453-7