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Determination of Short Range Order Parameters in 62Ni0.765Fe0.235 At 600°C Effect of a Quench

Published online by Cambridge University Press:  21 February 2011

S. Lefebvre
Affiliation:
Cecm 15, Rue G. Urbain, 94400 Vitry/Seine, France;
F. Bley
Affiliation:
Ltpcm, Enseeg, B.P. 75 DU, 38042 St Martin d'Hères, France;
P. Cenedese
Affiliation:
Ill, 156 X, 38042 Grenoble, France.
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Abstract

Different states of local order have been previously measured at room temperature on water quenched crystal of Ni0.76562 Fe0.235 [1−2]. The Cowley' parameters and the interaction pair potentials in a Clapp and floss approximation have been determined at : 385° C, 470°C, 507°C, 535°C, 685°C that is under and above Tc which is equal to 500°C for this composition.

The kinetic of long range order establishment is, in this alloy, very sluggish even near Tc [3]; the kinetic of short range order (SRO) is completely different and may be more complex [4]. In the previous experiments it has been supposed that the state of high temperature was retained during the quench. The following experiments check this hypothesis.

Type
Research Article
Copyright
Copyright © Materials Research Society 1984

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References

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