Order-disorder transformation mechanism in aluminum-doped Ni<sub>3</sub>Mn alloy

Abstract

The kinetics of order-disorder transformation in Ni₃(Mn, Al) alloys prequenched from 700°C has been studied by neutron-diffraction analysis. Within the framework of the I. M. Lifshits model, it is shown that in Ni₃(Mn, Al) alloys containing 2.0 and 4.3 at.% aluminum, ordering proceeds by the homogeneous mechanism at 400° and by nucleation and growth at 450°. The causes are discussed of the sharp speedup of the order-disorder transformation in its first stage in aluminum-doped Ni₃Mn alloy as compared with the binary alloy.

Original language	English
Pages (from-to)	436-440
Number of pages	5
Journal	Soviet Physics Journal
Volume	20
Issue number	4
DOIs	https://doi.org/10.1007/BF01207682
Publication status	Published - Apr 1977

ASJC Scopus subject areas

Physics and Astronomy(all)
Engineering(all)

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10.1007/BF01207682

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Lotkov, A. I., Panin, V. E., & Fadin, V. P. (1977). Order-disorder transformation mechanism in aluminum-doped Ni₃Mn alloy. Soviet Physics Journal, 20(4), 436-440. https://doi.org/10.1007/BF01207682

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abstract = "The kinetics of order-disorder transformation in Ni3(Mn, Al) alloys prequenched from 700°C has been studied by neutron-diffraction analysis. Within the framework of the I. M. Lifshits model, it is shown that in Ni3(Mn, Al) alloys containing 2.0 and 4.3 at.% aluminum, ordering proceeds by the homogeneous mechanism at 400° and by nucleation and growth at 450°. The causes are discussed of the sharp speedup of the order-disorder transformation in its first stage in aluminum-doped Ni3Mn alloy as compared with the binary alloy.",

author = "Lotkov, {A. I.} and Panin, {V. E.} and Fadin, {V. P.}",

year = "1977",

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AU - Lotkov, A. I.

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AU - Fadin, V. P.

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N2 - The kinetics of order-disorder transformation in Ni3(Mn, Al) alloys prequenched from 700°C has been studied by neutron-diffraction analysis. Within the framework of the I. M. Lifshits model, it is shown that in Ni3(Mn, Al) alloys containing 2.0 and 4.3 at.% aluminum, ordering proceeds by the homogeneous mechanism at 400° and by nucleation and growth at 450°. The causes are discussed of the sharp speedup of the order-disorder transformation in its first stage in aluminum-doped Ni3Mn alloy as compared with the binary alloy.

AB - The kinetics of order-disorder transformation in Ni3(Mn, Al) alloys prequenched from 700°C has been studied by neutron-diffraction analysis. Within the framework of the I. M. Lifshits model, it is shown that in Ni3(Mn, Al) alloys containing 2.0 and 4.3 at.% aluminum, ordering proceeds by the homogeneous mechanism at 400° and by nucleation and growth at 450°. The causes are discussed of the sharp speedup of the order-disorder transformation in its first stage in aluminum-doped Ni3Mn alloy as compared with the binary alloy.

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