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Type: Artigo de periódico
Title: Diffusion Patterns Of Formation Of The Phase Fe17nd2nx At 400°c
Author: Colucci C.C.
Gama S.
Labaki L.C.
Ribeiro C.A.
Abstract: Samples of Fe17Nd2Nx have been prepared for x=0.0, 0.5, 1.0, 1.5, 2.0 and 2.1 nitrogen atoms per formula unit, at 400°C. They were analysed by metallography, thermomagnetic analysis, electron microprobe and X-ray diffraction. The measurements show that all the samples contained the pure Fe17Nd2 phase alongside the saturated Fe17Nd2N2.3 phase. The measurements also show that the diffusion mainly proceeds along extended defects as grain and phase boundaries, dislocations and dislocations arrays. The expected shell-core diffusion model is not observed. Heavily nitrided samples shows the presence of striae depicting fast diffusion paths from the exterior to the interior of the powder particles. © 1993.
Rights: fechado
Identifier DOI: 10.1016/0304-8853(93)90833-N
Date Issue: 1993
Appears in Collections:Unicamp - Artigos e Outros Documentos

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