PERSONAL DE APOYO
DI LALLA Nicolas
artículos
Título:
Grain Boundary Diffusion and Segregation of Co and Cr in Zr-Based Alloys
Autor/es:
C. CORVALÁN; M. IRIBARREN; N. DI LALLA ; F. DYMENT
Revista:
DEFECT AND DIFFUSION FORUM
Editorial:
trans Tech Publications
Referencias:
Año: 2009 vol. 283 p. 669 - 674
ISSN:
1012-0386
Resumen:
51Cr and 60Co diffusion along grain boundary (GB) in polycrystalline a-Zr and b-Zr-20%Nb were measured by means of the radiotracer technique in an overall temperature range [380-1000] K. The use of Harrison´s C and B kinetics resulted in direct data of the GB diffusivity (Dgb) and the apparent GB diffusivity (Pgb). The analized temperatures involved those of power reactors service. The GB segregation factors s were determined or evaluated in the limit of very dilute solute concentration.
