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The β → α Transition in Rapidly Quenched Sn-Ge Alloys

Published online by Cambridge University Press:  15 February 2011

W.M. Gallerneault  and
R.W. Smith
W.M. Gallerneault
Affiliation:
Department of Metallurgical Engineering Queen's University, Kingston, Canada
R.W. Smith
Affiliation:
Department of Metallurgical Engineering Queen's University, Kingston, Canada
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Abstract

Dilute Sn-Ge alloys were prepared as ribbons by meltspinning using a 4" copper drum. They were then transformed into grey tin at 242 K in the as-cast-condition, and after annealing. It is shown that germanium: (1) when in solid solution impedes β → α transformation; (2) when in solid solution cannot effect nucleation; and (3) has a solubility in α-Sn in excess of 1 wt. % Ge.

In addition it is proposed that β → α transformation is restricted because the presence of germanium strengthens the β-Sn matrix.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 8 , 1981 , 387
Copyright
Copyright © Materials Research Society 1982

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References

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