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Effect of Initial Composition Distribution on the Phase Transformation Behavior in the Fe-Cr-Ni System

Published online by Cambridge University Press:  21 February 2011

J. M. Vitek  and
S. A. David
J. M. Vitek
Affiliation:
Oak Ridge National Laboratory, P. O. Box 2008, Oak Ridge, TN 37831–6376, vmj@ornl.gov
S. A. David
Affiliation:
Oak Ridge National Laboratory, P. O. Box 2008, Oak Ridge, TN 37831–6376, vmj@ornl.gov
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Abstract

A finite-difference implicit numerical model was used to study the diffusion-controlled α-γ solid-state phase transformation in the Fe-Cr-Ni system. The influence of a non-uniform initial composition distribution was examined in order to assess the impact that non-uniform solute profiles resulting from solidification may have on subsequent transformation behavior in weldments and castings. A significant impact on the transformation kinetics and transformation path was found in some cases. The factors that affect the degree of influence are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 398: Symposium C – Thermodynamics and Kinetics of Phase Transformations , 1995 , 507
Copyright
Copyright © Materials Research Society 1998

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References

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