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L12 Ordering in Disordered NiAIFe Alloys

  • A.R Yavari (a1), M.D. Baro (a2), G. Fillion (a3), S. Surinach (a2), S. Gialanella (a4), M.T. Clavaguera-Mora (a2), P. Desriè (a1) and R.W. Cahn (a4)...

Abstract:

Ordering of the disordered state (obtained by cold-working or by meltspinning) of L12 type Ni,AI,Fe alloys has been monitored by calorimetric, magnetic and X-ray diffraction measurements .It is found that the magnetic moment per atom of the Ni,Al,Fe alloys in the γ-disordered state is about half of that of the LI2 -γ'state. Magnetic measurements such as ours constitute a new tool for studyingthe γ→γ' transition below the Curie temperature.

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[1] Yavari, A.R. and Bochu, B., Philo Mag.A,59, 697 (1989)
[2] Yavari, A.R., Baro, M.D. and Surinach, S.,Anales de Fisica in press (1990)
[3] Bradley, A.J., J. Iron Steel Inst., 168, 233 (1951)
[4] Mitsui, K., Mishima, Y. and Suzuki, T., Philo Mag.A,59, 123 (1989)
[5] Sekula, S.T., Kerchner, H.R., Thompson, J.R. and Leventouri, Th., Mat. Res. Soc. Symp. Proc.,39, 513 (1985)
[6] Efthemiadis, K.G., Antonopoulos, J.G. and Tsoukalas, I.A., Solid State Comm, 70, 903 (1989)
[7] Miller, M.K. and Horton, J.A., Scripta Metall., 20, 1125 (1986)

L12 Ordering in Disordered NiAIFe Alloys

  • A.R Yavari (a1), M.D. Baro (a2), G. Fillion (a3), S. Surinach (a2), S. Gialanella (a4), M.T. Clavaguera-Mora (a2), P. Desriè (a1) and R.W. Cahn (a4)...

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