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Identification du comportement thermomécanique d’un alliageCuCr1Zr*

Published online by Cambridge University Press:  06 July 2011

D. Carron ,
J. Wisniewski ,
P. Pilvin ,
M. Carin ,
J. Costa  and
D. Ayrault
D. Carron
Affiliation:
LIMatB, Université de Bretagne-Sud / UEB, Centre de Recherche Ch. Huygens, Rue de Saint-Maudé, BP 92116, 56321 Lorient Cedex, France. e-mail: denis.carron@univ-ubs.fr
J. Wisniewski
Affiliation:
LIMatB, Université de Bretagne-Sud / UEB, Centre de Recherche Ch. Huygens, Rue de Saint-Maudé, BP 92116, 56321 Lorient Cedex, France. e-mail: denis.carron@univ-ubs.fr CEA, DEN, DM2S, SEMT, LTA, 91191 Gif-sur-Yvette, France
P. Pilvin
Affiliation:
LIMatB, Université de Bretagne-Sud / UEB, Centre de Recherche Ch. Huygens, Rue de Saint-Maudé, BP 92116, 56321 Lorient Cedex, France. e-mail: denis.carron@univ-ubs.fr
M. Carin
Affiliation:
LIMatB, Université de Bretagne-Sud / UEB, Centre de Recherche Ch. Huygens, Rue de Saint-Maudé, BP 92116, 56321 Lorient Cedex, France. e-mail: denis.carron@univ-ubs.fr
J. Costa
Affiliation:
LIMatB, Université de Bretagne-Sud / UEB, Centre de Recherche Ch. Huygens, Rue de Saint-Maudé, BP 92116, 56321 Lorient Cedex, France. e-mail: denis.carron@univ-ubs.fr
D. Ayrault
Affiliation:
CEA, DEN, DM2S, SEMT, LTA, 91191 Gif-sur-Yvette, France
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Abstract

The mechanical properties of a CuCr1Zr alloy were measured with the help of a Gleeble3500 machine at temperatures ranging from 250 °C to 1000 °C. Some tensile tests were alsoperformed at 20 °C. The measured data were first used to determine the thermal linearcoefficient at different temperatures. The measured curves were then simulated with anelasto-visco-plastic constitutive model assuming that the material behaviour wasisotropic. This law requires the knowledge of temperature dependent parameters that weredetermined by inverse method. This work represents a part of a PhD study on hot tearingsusceptibility during welding.

Keywords

CuCr1Zr alloythermomechanical characterizationconstitutive modelinverse methodsAlliage CuCr1Zrcaractérisation thermomécaniqueloi de comportementméthodes inverses
Type
Research Article
Information
Metallurgical Research & Technology , Volume 107 , Issue 10-11 , November 2010 , pp. 445 - 448
Copyright
© EDP Sciences

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References

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J. Wisniewski, Thèse de doctorat, Université de Bretagne-Sud, mars 2009
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P. Pilvin, Notice d’utilisation de SiDoLo, Université de Bretagne-Sud, Version 2.4495, 2003
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