Abstract
Ni and Fe powders in a 75∶25 atomic proportion were mechanically alloyed using a high-energy ball mill.57Fe Mössbauer measurements were made to determine the reaction mechanism for alloy formation by means of analysis of the evolution of the Fe hyperfine fields during milling. After a latent period of 2 hours, the spectral area of an Fe-like component decreased monotonically with milling time, disappearing after 8 hours. It was replaced by a well-resolved Zeeman pattern with hyperfine fieldH=29.1 T and outer lines of width 0.75 mm/s which is attributed to Fe in disordered Ni3Fe. The evolution of hyperfine fields rules out alloy formation by dissolution of Ni in the Fe matrix or of Fe in the Ni matrix, so that formation must occur by reaction of Ni and Fe at the interfaces between their grains.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
G.S. Collins and B.H. Meeves, Scripta Metall. Mater. 29(1993)1319.
J.E. Frackowiak, Phys. State. Sol. 87(1985)109.
A. Narayanasamy et al., J. Phys. F9(1979)2261.
J.Y. Ping, D.G. Rancourt and R.A. Dunlap, J. Magn. Magn. Mater. 103(1992)285.
J.W. Drijver, F. van der Woude and S. Radelaar, Phys. Rev. B16(1977)985.
I. Vincze and I.A. Campbell, J. Phys. F3(1973)647.
K.S. Krane, Hyp. Int. 15/16(1983)1069.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Meeves, B.H., Collins, G.S. Formation of Ni3Fe by mechanical alloying. Hyperfine Interact 92, 955–958 (1994). https://doi.org/10.1007/BF02065718
Issue Date:
DOI: https://doi.org/10.1007/BF02065718