Reaction diffusion in Ni–Al diffusion couples in steady magnetic fields

Li, Chuanjun; Yuan, Zhaojing; Guo, Rui; Wang, Xuan; Ren, Zhongming; Zhong, Yunbo; Li, Xi; Wang, Hui; Wang, Qiuliang

doi:10.1016/j.jallcom.2015.04.061

Cited by 33 publications

(19 citation statements)

References 18 publications

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“…Some studies showed that the SMF inhibited diffusivity in alloys. 11,23) For example, Youdelis et al found that the diffusivity in the Al-Cu alloy was reduced by approximately 25% in the SMF of 3T. Therefore, the amount of the non-equilibrium eutectic of the Al-4.5mass%Cu alloy with and without a 3T SMF can be compared, the following values are used in the calculation without a SMF, k = 0.17, C eut = 33.2 mass%, D s = 1.2 × 10 − 12 m 2 s − 1 .…”

Section: Resultsmentioning

confidence: 99%

Microsegregation Formation in Al–Cu Alloy under Action of Steady Magnetic Field

Guo

et al. 2018

ISIJ Int.

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Section: Resultsmentioning

confidence: 99%

Microsegregation Formation in Al–Cu Alloy under Action of Steady Magnetic Field

Guo

et al. 2018

ISIJ Int.

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“…Li et al reported that the k 0 of the NiAl diffusion couple decreased on applying a magnetic field. 27) This reduction in k 0 with solid-solid diffusion was due to the Lorentz force. 27) It has also been reported that the viscosity of liquid Ga is enhanced by a magnetic field.…”

Section: Resultsmentioning

confidence: 96%

“…27) This reduction in k 0 with solid-solid diffusion was due to the Lorentz force. 27) It has also been reported that the viscosity of liquid Ga is enhanced by a magnetic field. 28) This field-induced viscosity leads to a reduction in k 0 in the present MnGa reaction.…”

Section: Resultsmentioning

confidence: 96%

Phase Formation of a Solid-Liquid Mn–Ga Diffusion Couple under a Magnetic Field

et al. 2019

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In-field heat treatments of an MnGa diffusion couple were performed at 773 K for 12, 24 and 48 h to investigate the phase formation under magnetic fields. Formation of the MnGa 3 , Mn 2 Ga 5 , MnGa, Mn 3 Ga 2 and ¢-Mn phases was confirmed for magnetic fields of 0 T and 5 T. For a diffusion-controlled process, there is a parabolic relationship between the thickness of the phase layers and annealing time for the MnGa and Mn 2 Ga 5 phases. The parabolic coefficients of MnGa and Mn 2 Ga 5 for a zero magnetic field were determined as 8.7 © 10 ¹3 µm 2 s ¹1 and 4.6 © 10 ¹1 µm 2 s ¹1 respectively. For a magnetic field of 5 T, the parabolic coefficients were evaluated as 11 © 10 ¹3 µm 2 s ¹1 for the MnGa phase and 4.5 © 10 ¹1 µm 2 s ¹1 for the Mn 2 Ga 5 phase.

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“…Diffusion in metals under magnetic fields has been studied, such as magnetic-field-induced motion of the grain boundary [1][2][3] and suppression of the intermediate phase growth of diffusion couples. [4][5][6] The field-induced suppression of crystal growth was explained by the ambipolar model 5) or atomic movement by Lorentz forces. 6) For ferromagnetic metals, the diffusion of carbon in iron under a magnetic field of 6 T was reported.…”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6] The field-induced suppression of crystal growth was explained by the ambipolar model 5) or atomic movement by Lorentz forces. 6) For ferromagnetic metals, the diffusion of carbon in iron under a magnetic field of 6 T was reported. 7) The diffusion constants of carbon to ferromagnetic α-Fe were suppressed and enhanced by a static magnetic field and magnetic field gradient, respectively.…”

Section: Introductionmentioning

confidence: 99%