Yu, Y, Mullis, AM and Cochrane, RF (2016) Rapidly solidified Ag-Cu eutectics: A comparative study using drop-tube and melt fluxing techniques. In: IOP Conference Series: Materials Science and Engineering. 4th International Conference on Advances in Solidification Processes (ICASP-4), 08-11 Jul 2014, Windsor, UK. IOP Publishing
Abstract
A comparative study of rapid solidification of Ag-Cu eutectic alloy processed via melt fluxing and drop-tube techniques is presented. A computational model is used to estimate the cooling rate and undercooling of the free fall droplets as this cannot be determined directly. SEM micrographs show that both materials consist of lamellar and anomalous eutectic structures. However, below the critical undercooling the morphologies of each are different in respect of the distribution and volume of anomalous eutectic. The anomalous eutectic in flux- undercooled samples preferentially forms at cell boundaries around the lamellar eutectic in the cell body. In drop-tube processed samples it tends to distribute randomly inside the droplets and at much smaller volume fractions. That the formation of the anomalous eutectic can, at least in part, be suppressed in the drop-tube is strongly suggestive that the formation of anomalous eutectic occurs via remelting process, which is suppressed by rapid cooling during solidification.
Metadata
Item Type: | Proceedings Paper |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Institute for Materials Research (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 11 Oct 2016 11:05 |
Last Modified: | 11 Oct 2016 11:09 |
Published Version: | http://dx.doi.org/10.1088/1757-899X/117/1/012053 |
Status: | Published |
Publisher: | IOP Publishing |
Identification Number: | 10.1088/1757-899X/117/1/012053 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:101239 |