Grain Boundary Diffusion and Segregation of Co and Cr in Zr-Based Alloys

Abstract:

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51Cr and 60Co diffusion along grain boundary (GB) in polycrystalline Zr and -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 analyzed temperatures involved those of power reactors service. The GB segregation factors s were determined or evaluated in the limit of very dilute solute concentration.

Info:

Periodical:

Defect and Diffusion Forum (Volumes 283-286)

Edited by:

Andreas Öchsner, Graeme E. Murch and Ali Shokuhfar

Pages:

669-674

DOI:

10.4028/www.scientific.net/DDF.283-286.669

Citation:

C. Corvalán Moya et al., "Grain Boundary Diffusion and Segregation of Co and Cr in Zr-Based Alloys", Defect and Diffusion Forum, Vols. 283-286, pp. 669-674, 2009

Online since:

March 2009

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$35.00

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