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Ni grain boundary diffusion in coarse-grained Fe-40 wt.% Ni alloy and comparison with Ni diffusion in the nanocrystalline alloy

  • Y.-S. Kang , J.-S. Lee , S. V. Divinski and Chr. Herzig EMAIL logo
Published/Copyright: December 20, 2021
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 95 Issue 2

Abstract

63Ni grain boundary (GB) diffusion in polycrystalline γ-Fe – Ni alloy was measured by the conventional radiotracer method. The double product P = δ x Dgb (δ is the GB width and Dgb is the GB diffusivity) was found to follow the Arrhenius relationship P =1.31×10−13× exp(−157 kJ mol−1/RT) m3/s, where R is the gas constant and T is the temperature. The results in the coarse-grained material (grain size d ≈ 0.5 mm) were discussed in comparison with our previous investigation of Ni diffusion in a nanocrystalline alloy (d ≈ 100 nm) of the same composition.

Keywords: Grain boundary diffusion of Ni in Fe-40 wt.% Ni; Polycrystalline material; Nanocrystalline material; γ-Fe-Ni alloy
Prof. Dr. Chr. Herzig, Institut für Materialphysik, Universität Münster, Wilhelm-Klemm-Str. 10, D-48149 Münster, Germany, Tel.: +49 251 83 33573, Fax: +49 251 83 38346

Funding statement: This joint German – Korean project was initiated and supported by the Alexander von Humboldt Foundation, Bonn, Germany. The authors (J. S. L. and Y. S. K.) gratefully acknowledge the financial support from the Korean Ministry of Science and Technology through the “National R & D Project for Nano Science and Technology”

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Received: 2003-10-13
Accepted: 2003-11-27
Published Online: 2021-12-20

© 2004 Carl Hanser Verlag, München

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  13. Notifications/Mitteilungen
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https://doi.org/10.3139/ijmr-2004-0018
Keywords for this article
Grain boundary diffusion of Ni in Fe-40 wt.% Ni; Polycrystalline material; Nanocrystalline material; γ-Fe-Ni alloy

Articles in the same Issue

  1. Frontmatter
  2. Articles BBasic
  3. Thermodynamic modeling of the Rh–Zr system
  4. Ni grain boundary diffusion in coarse-grained Fe-40 wt.% Ni alloy and comparison with Ni diffusion in the nanocrystalline alloy
  5. Crystallization kinetics of an amorphous Zr70Cu20Ni10 alloy
  6. Oxidation-induced cavity formation in binary β-NiAl alloys
  7. Articles AApplied
  8. Influences of counterface materials and reinforcements on the sliding wear of copper matrix composites
  9. Model of artificial neural network for complex data analysis in slag glass-ceramic
  10. Quantitative investigation of material erosion caused by high-pressure discharges in air and nitrogen
  11. Role of alloying elements on machinability of plastic-molding steels
  12. A simple model for the strength and elongation of ultra-fine grained low carbon steels
  13. Notifications/Mitteilungen
  14. Personal/Personelles
  15. Conferences/Konferenzen
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