Self-diffusion in nanocrystalline Fe and Fe-rich alloys

Herth S, Michel T, Tanimoto H, Eggersmann M, Dittmar R, Schaefer HE, Frank W, Wurschum R (2001)
DIFFUSIONS IN MATERIALS: DIMAT2000, PTS 1 & 2 194-1: 1199-1204.

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The present work aims at a comparison of the self-diffusion behaviour of nanocrystalline (n-)Fe produced by cluster condensation and compaction with that of Fe-rich n-alloys made by crystallization of melt-spun amorphous ribbons. In cluster-synthesized Fe (relative density higher than 91 %), a decrease of the (59)Fe tracer diffusivity upon annealing indicates interface relaxation. The diffusion coefficients in the relaxed grain boundaries are similar to those extrapolated from high-temperature data of conventional grain boundaries. Substantially lower interface diffusivities in crystallized n-Fe(90)Zr(10) and n-Fe(90)Zr(7)B(3) presumably arise from residual intergranular amorphous layers. Due to the reduced amorphous fraction, in n-Fe(90)Zr(10) additional fast diffusion paths exist like in conventional grain boundaries.
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Herth S, Michel T, Tanimoto H, et al. Self-diffusion in nanocrystalline Fe and Fe-rich alloys. DIFFUSIONS IN MATERIALS: DIMAT2000, PTS 1 & 2. 2001;194-1:1199-1204.
Herth, S., Michel, T., Tanimoto, H., Eggersmann, M., Dittmar, R., Schaefer, H. E., Frank, W., et al. (2001). Self-diffusion in nanocrystalline Fe and Fe-rich alloys. DIFFUSIONS IN MATERIALS: DIMAT2000, PTS 1 & 2, 194-1, 1199-1204.
Herth, S., Michel, T., Tanimoto, H., Eggersmann, M., Dittmar, R., Schaefer, H. E., Frank, W., and Wurschum, R. (2001). Self-diffusion in nanocrystalline Fe and Fe-rich alloys. DIFFUSIONS IN MATERIALS: DIMAT2000, PTS 1 & 2 194-1, 1199-1204.
Herth, S., et al., 2001. Self-diffusion in nanocrystalline Fe and Fe-rich alloys. DIFFUSIONS IN MATERIALS: DIMAT2000, PTS 1 & 2, 194-1, p 1199-1204.
S. Herth, et al., “Self-diffusion in nanocrystalline Fe and Fe-rich alloys”, DIFFUSIONS IN MATERIALS: DIMAT2000, PTS 1 & 2, vol. 194-1, 2001, pp. 1199-1204.
Herth, S., Michel, T., Tanimoto, H., Eggersmann, M., Dittmar, R., Schaefer, H.E., Frank, W., Wurschum, R.: Self-diffusion in nanocrystalline Fe and Fe-rich alloys. DIFFUSIONS IN MATERIALS: DIMAT2000, PTS 1 & 2. 194-1, 1199-1204 (2001).
Herth, Simone, Michel, T, Tanimoto, H, Eggersmann, M, Dittmar, R, Schaefer, HE, Frank, W, and Wurschum, R. “Self-diffusion in nanocrystalline Fe and Fe-rich alloys”. DIFFUSIONS IN MATERIALS: DIMAT2000, PTS 1 & 2 194-1 (2001): 1199-1204.
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