IFIR 05409
INSTITUTO DE FISICA DE ROSARIO
Unidad Ejecutora - UE
artículos
Título:
Thermal stability of ARMCO iron processed by ECAP
Autor/es:
EXPÓSITO, ANA HERNÁNDEZ; DUMITRU, FLORINA D.; CABRERA, JOSÉ MARÍA; HIGUERA, OSCAR FABIÁN; BOLMARO, RAÚL E.; JORGE, ALBERTO MOREIRA; MUÑOZ, JAIRO ALBERTO; BOULAAJAJ, AHMED; CALVILLO, PABLO RODRIGUEZ
Revista:
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
Editorial:
SPRINGER LONDON LTD
Referencias:
Año: 2018 vol. 98 p. 2917 - 2932
ISSN:
0268-3768
Resumen:
The thermal stability of ARMCO iron processed by equal-channel angular pressing (ECAP) up to a true strain of 16 was investigated by differential scanning calorimetry (DSC). Particularly, the analysis was focused on deriving the recrystallization behavior (onset, peak, and offset temperatures) at three different heating rates (10, 20, and 40 °C/min). Additionally, the stored and activation energies were calculated. As well, the microstructure and the tensile response were evaluated at different numbers of passes before and after annealing heat treatment to assess any significant grain growth and its influence on the material ductility. The different energy contributions (dislocations, grain boundaries, and vacancies) were calculated, being verified that the main contribution came from vacancies.
