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Microstructure of off-Eutectic Nanoscale Pb-Cd Inclusions in Al

Published online by Cambridge University Press:  02 July 2020

D.P. Peters ,
E. Johnson ,
V.S. Touboltsev ,
A. Johansen  and
L. Sarholt
D.P. Peters
Affiliation:
Ørsted Laboratory, University of Copenhagen, Denmark
E. Johnson
Affiliation:
Ørsted Laboratory, University of Copenhagen, Denmark
V.S. Touboltsev
Affiliation:
Ørsted Laboratory, University of Copenhagen, Denmark
A. Johansen
Affiliation:
Ørsted Laboratory, University of Copenhagen, Denmark
L. Sarholt
Affiliation:
Ørsted Laboratory, University of Copenhagen, Denmark
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Extract

Much work has been devoted to TEM studies of nanoscale precipitates consisting of non-soluble elements in Al, as the Al matrix acts as a unique crucible enabling the study of melting/ solidification and crystal phase transformations at a nanometer scale. Recently, this work has been extended to include the ternary system of Al-Pb-Cd. This system is of particular interest, as both Pb and Cd display a large liquid miscibility gap with Al, but together they form a eutectic system. Bimetallic inclusions consist of an fcc Pb and an hcp Cd segment, joined along an internal interface parallel to the {111}Al planes. In this work, the microstructure and composition of off-eutectic Pb-Cd inclusions are studied. Polycrystalline Al samples were implanted with 1 x 1020 ions/m2 (∼3 at.%) with a Cd:Pb ratio of either 8:2 or 2:8, at temperatures to form inclusions in the 10 nm size range.

Type
Metals and Alloys
Information
Microscopy and Microanalysis , Volume 5 , Issue S2: Proceedings: Microscopy & Microanalysis '99, Microscopy Society of America 57th Annual Meeting, Microbeam Analysis Society 33rd Annual Meeting, Portland, Oregon August 1-5, 1999 , August 1999 , pp. 860 - 861
Copyright
Copyright © Microscopy Society of America

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References

1.Hagege, S. and Dahmen, U., Phil. Mag. Lett. 74, 259 (1996)CrossRefGoogle Scholar
2.Johnson, E. and Dahmen, U., Microsc. Microanal. 3, 409 (1997)CrossRefGoogle Scholar
3.Johnson, E.et al., Nucl. Instr. Meth. B127/128, 727 (1997)CrossRefGoogle Scholar
4.Porter, D.A. and Easterling, K.E., Phase Transformations in Metals and Alloys, 2nd ed. p.44, 1992CrossRefGoogle Scholar
5. This work was supported by the Danish Natural Sciences Research Council and the European Union “Socrates” exchange scholarship program.Google Scholar