High Temperature Mechanical behaviour of Ni-Cr-Fe heat resistant cast steel

Abstract : The effect of microstructure on the high temperature behaviour of a Ni-Cr-Fe heat resistant cast steel is investigated. Specimens issued from the columnar and equiaxe zones of the ingot are tensile tested up to 950 degrees C. The comparative analysis of stress-strain and relaxation curves shows little difference in the macroscopic behaviour. Whatever the microstructure, the brittle to ductile transition occurs between 500 degrees C and 750 degrees C, and micro-cracking of interdendritic carbides is responsible of the instabilities shown on the stress-strain plots at 500 degrees C.
Type de document :
Communication dans un congrès
Ellyin, F and Provan, JW. Eight international conference on mechanical behaviour of materials ICM 8, May 1999, Victoria, Canada. UNIV VICTORIA, DEPT MECH ENGN, Extrait de : Progress in mechanical behaviour of materials - advance materials and modelling of mechanical behaviour ; proceedings / sous la dir. de F. ELLYN et J.W. PROVAN. - ISBN 1-55058-164-3, pp.653-657, 1999
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https://hal.archives-ouvertes.fr/hal-01701677
Contributeur : Imt Mines Albi Ecole Nationale Supérieure Des Mines d'Albi-Carmaux <>
Soumis le : mardi 6 février 2018 - 08:57:35
Dernière modification le : lundi 23 juillet 2018 - 11:22:40

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  • HAL Id : hal-01701677, version 1

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Stéphane Baleix, Philippe Lours, Gérard Bernhart. High Temperature Mechanical behaviour of Ni-Cr-Fe heat resistant cast steel. Ellyin, F and Provan, JW. Eight international conference on mechanical behaviour of materials ICM 8, May 1999, Victoria, Canada. UNIV VICTORIA, DEPT MECH ENGN, Extrait de : Progress in mechanical behaviour of materials - advance materials and modelling of mechanical behaviour ; proceedings / sous la dir. de F. ELLYN et J.W. PROVAN. - ISBN 1-55058-164-3, pp.653-657, 1999. 〈hal-01701677〉

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