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Strain development during thermal treatment of steel-based MMC by high energy X-ray diffraction.

Published online by Cambridge University Press:  10 May 2013

G. Geandier ,
M. Dehmas ,
M. Mourot ,
E. Gautier ,
S. Denis ,
O. Martin  and
N. Karnatak
G. Geandier
Affiliation:
Institut Jean Lamour – CNRS UMR 7198 - Universite de Lorraine, Parc de Saurupt CS 50840, 54011 Nancy Cedex, France
M. Dehmas
Affiliation:
Institut Jean Lamour – CNRS UMR 7198 - Universite de Lorraine, Parc de Saurupt CS 50840, 54011 Nancy Cedex, France
M. Mourot
Affiliation:
Institut Jean Lamour – CNRS UMR 7198 - Universite de Lorraine, Parc de Saurupt CS 50840, 54011 Nancy Cedex, France
E. Gautier
Affiliation:
Institut Jean Lamour – CNRS UMR 7198 - Universite de Lorraine, Parc de Saurupt CS 50840, 54011 Nancy Cedex, France
S. Denis
Affiliation:
Institut Jean Lamour – CNRS UMR 7198 - Universite de Lorraine, Parc de Saurupt CS 50840, 54011 Nancy Cedex, France
O. Martin
Affiliation:
Mecachrome, 27 rue de la Milletiere, 37073 Tours Cedex 2, France.
N. Karnatak
Affiliation:
Mecachrome, 27 rue de la Milletiere, 37073 Tours Cedex 2, France.
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Abstract

Developments of composites materials had begun in the 1970's. They aimed in improving mechanical properties due to the presence of reinforcement particles. The addition of particles in a matrix led to different modifications: considering the nature of the phases and the microstructure, we can mention interface reactivity between matrix and particles, changes in the chemical composition of the matrix and modified kinetics of microstructure evolution in the matrix (as compared to the matrix without particles); considering the mechanical aspects, thermal stresses may be generated due to the differences in expansion coefficients between the particles and the matrix, or any changes in the matrix leading to a phase transformation. In the present work, we studied the evolution of the phases and the behavior of a steel based MMC during thermal treatments, for which a phase transformation occurred on cooling. Experiments and numerical simulation are considered.

Keywords

compositex-ray diffraction (XRD)phase transformation
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1528: Symposium VV – Advanced Materials Exploration with Neutrons and Synchrotron X-Rays , 2013 , mrsf12-1528-vv07-09
Copyright
Copyright © Materials Research Society 2013 

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References

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