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Mapping of multi-elements during melting and solidification using synchrotron X-rays and pixel-based spectroscopy

DOI: 10.1038/srep15988 DOI Help
PMID: 26522250 PMID Help

Authors: E. Liotti (University of Oxford) , A. Lui (University of Oxford) , T. Connolley (Diamond Light Source) , I. Dolbnya (Diamond Light Source) , K. J. S. Sawhney (Diamond Light Source) , A. Malandain (Diamond Light Source) , M. Wilson (Rutherford Appleton Laboratory, Science & Technology Facilities Council (STFC)) , M. Veale (STFC) , P. Seller (STFC) , P. S. Grant (University of Oxford)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Scientific Reports , VOL 5 , PAGES 23310-23317

State: Published (Approved)
Published: November 2015
Diamond Proposal Number(s): 10133

Open Access Open Access

Abstract: A new synchrotron-based technique for elemental imaging that combines radiography and fluorescence spectroscopy has been developed and applied to study the spatial distribution of Ag, Zr and Mo in an Al alloy during heating and melting to 700, and then re-soldification. For the first time, multi-element distributions have been mapped independently and simultaneously, showing the dissolution of Ag- and Zr-rich particles during melting and the inter-dendritic segregation of Ag during re-solidification. The new technique is shown to have wide potential for metallurgical and materials science applications where the dynamics of elemental re-distribution and segregation in complex alloys is of importance.

Journal Keywords: HEXITEC, Spectroscopy

Subject Areas: Materials, Technique Development

Instruments: B16-Test Beamline