A Synchrotron X-Ray Radiography Investigation of Induced Dendrite Fragmentation in Al-15wt%Cu

Enzo Liotti; Andrew Lui; Robin Vincent; Sundaram Kumar; Zhi Peng Guo; Thomas Connolley; Michael Hart; Lars Arnberg; Ragnvald H. Mathiesen; Patrick S. Grant

doi:10.4028/www.scientific.net/MSF.765.210

Paper Titles

Ultrafast X-Ray Imaging and Modelling of Ultrasonic Cavitations in Liquid Metal
p.190

Melt Quenched High Pressure Die Casting (MQ-HPDC) of an A356 Alloy
p.195

Plasma Treatment Casting of Cast Aluminum 6XXX Wrought Alloys
p.200

Influence of Process Parameters on Twin Roll Cast Strip of the Alloy AZ31
p.205

A Synchrotron X-Ray Radiography Investigation of Induced Dendrite Fragmentation in Al-15wt%Cu
p.210

Relationship between Growth Rates and Dendritic Microstructure Parameters in Al-5wt. Zn Binary Alloy
p.215

Characterisation of Oxide Films in Al-Mg Alloy Melts
p.220

Modelling of the Effects of Entrainment Defects on Mechanical Properties in a Cast Al-Si-Mg Alloy
p.225

High Speed Imaging Study of the Dynamics of Ultrasonic Bubbles at a Liquid-Solid Interface
p.230

HomeMaterials Science ForumMaterials Science Forum Vol. 765A Synchrotron X-Ray Radiography Investigation of...

A Synchrotron X-Ray Radiography Investigation of Induced Dendrite Fragmentation in Al-15wt%Cu

Abstract:

The effect of a Pulsed Electro Magnetic Field (PEMF) on the solidification of an Al‑15 wt%Cu alloy was studied in situ by synchrotron X-ray radiography. Samples were solidified with and without the presence of the PEMF while recording radiographs, enabling observation and quantification of dendrite fragmentation by image analysis. Fragmentation increased with a PEMF and was attributed to induced inter-dendritic flow.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volume 765)

Pages:

210-214

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.765.210

Citation:

Cite this paper

Online since:

July 2013

Authors:

Enzo Liotti, Andrew Lui, Robin Vincent, Sundaram Kumar, Zhi Peng Guo, Thomas Connolley, Michael Hart, Lars Arnberg, Ragnvald H. Mathiesen, Patrick S. Grant

Keywords:

Al-Cu Alloys, Dendrite Fragmentation, Diamond Light Source, Pulsed Electro Magnetic Field, Solidification, Time Resolved Radiography

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] A.L. Greer, P.S. Cooper, M.W. Meredith, W. Schneider, P. Schumacher, J.A. Spittle, A. Tronche, Grain refinement of aluminium alloys by inoculation, Adv. Eng. Mater. 5 (2003) 81-91.

DOI: 10.1002/adem.200390013

Google Scholar

[2] T.E. Quested, Understanding mechanisms of grain refinement of aluminium alloys by inoculation, Mater. Sci. Technol. 20 (2004) 1357-1369.

DOI: 10.1179/026708304225022359

Google Scholar

[3] H. K. Moffat. Electromagnetic stirring, Phys. of Fluids A 3 (1991) 1336-1343.

Google Scholar

[4] Z. Guo, J. Mi, P.S. Grant, Phase field simulation of multi-dendrite growth in a coupled thermal-solute-convective environment, IOP Conf. Ser.:, Mater. Sci. Eng. 33 (2012) 012101.

DOI: 10.1088/1757-899x/33/1/012101

Google Scholar

[5] D. Ruvalcaba, R.H. Mathiesen, D.G. Eskin, L. Arnberg, L. Katgerman, In situ observations of dendritic fragmentation due to local solute-enrichment during directional solidification of an aluminum alloy, Acta Mater. 55 (2007) 4287-4292.

DOI: 10.1016/j.actamat.2007.03.030

Google Scholar

[6] R.H. Mathiesen, L. Arnberg, Stray crystal formation in Al-20wt.% Cu studied by synchrotron X-ray video microscopy, Mat. Sci. Eng. A 413 (2005) 283-287.

DOI: 10.1016/j.msea.2005.08.160

Google Scholar

[7] R.H. Mathiesen, L. Arnberg, P. Bleuet, A. Somogyi, Crystal fragmentation and columnar-to-equiaxed transitions in Al-Cu studied by synchrotron X-ray video microscopy, Metall. Mater. Trans. A 37 (2006) 2515-2524.

DOI: 10.1007/bf02586224

Google Scholar

[8] J. Zhu, T.M. Wang, Z.N. Chen, J.J. Xu, H.L. Xie, T.Q. Xiao, T.J. Li, Real time imaging on dendrite morphology evolution during alloy solidification under electric field, IOP Conf. Ser.:, Mater. Sci. Eng. 33 (2012) 012039.

DOI: 10.1088/1757-899x/33/1/012039

Google Scholar