IFIR 05409
INSTITUTO DE FISICA DE ROSARIO
Unidad Ejecutora - UE
artículos
Título:
Cyclic deformation and microstructural behaviour of reduced activation ferritic martensitic steels
Autor/es:
M. N. BATISTA, ; I. ALVAREZ-ARMAS; M. F. GIORDANA; S. HEREÑU; A. F. ARMAS
Revista:
Materials Science and Technology
Editorial:
MANEY PUBLISHING
Referencias:
Año: 2014 vol. 30 p. 1826 - 1831
ISSN:
1743-2847
Resumen:
The present paper presents results about cyclic behaviour and the evolution of the dislocation structure of reduced activation ferritic?martensitic steels and commercial martensitic steels AISI 410 and 420. The variation of the free dislocation density within subgrains and subgrain size was mainly analysed during the cyclic softening of EUROFER 97 steel. From the analysis of the flow stress components, the friction and back stresses, and the information of the evolution of the dislocation structure, it could be concluded that the softening of tempered martensitic steels at at 20°C is produced by the contribution of the friction stress and aided later by the back stress.
