Microstructure and superconducting properties of melt-quenched insoluble Al-Pb and Al-Pb-Bi alloys

Inoue, Akihisa; Yano, N.; Matsuzaki, Kunio; Masumoto, T.

doi:10.1007/bf01160560

Cited by 47 publications

(12 citation statements)

References 7 publications

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“…Immiscible alloys have been investigated as a kind of special metallurgy characteristics alloy [1][2][3]. In phase diagrams, immiscible alloys have a miscibility gap in the liquid state.…”

Section: Introductionmentioning

confidence: 99%

Effect of Rare-Earth Ce on Macrosegregation in Al-Bi Immiscible Alloys

Man

Zhang

et al. 2016

Metals

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Liquid phase segregation of immiscible alloys has been investigated for decades. In this work, rare-earth Ce was studied as an additive for Al-Bi immiscible alloys. The addition of Ce restrained liquid phase segregation to obtain a uniformly dispersive microstructure. The experimental results indicated that in situ-precipitated intermetallic CeBi 2 compound acted as an inoculant for the heterogeneous nucleation of the Bi-rich droplets. The Bi-rich droplets nucleated on the CeBi 2 compound surface-a homogenous dispersed microstructure obtained via a heterogeneous nucleation route. We concluded that gravity segregation can be suppressed by the addition of rare-earth Ce.

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“…Immiscible alloys have been investigated as a kind of special metallurgy characteristics alloy [1][2][3]. In phase diagrams, immiscible alloys have a miscibility gap in the liquid state.…”

Section: Introductionmentioning

confidence: 99%

Effect of Rare-Earth Ce on Macrosegregation in Al-Bi Immiscible Alloys

Man

Zhang

et al. 2016

Metals

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“…The relationship curve between the average diameter and the magnetic field strength is given by Figure 5 and fitted by Eq. [3]:…”

Section: Resultsmentioning

confidence: 98%

“…[1] The alloys have potential for practical application because of their good physical and chemical properties. [2][3][4] For instance, it is a good self-lubricating material used as a bearing alloy for automobiles if the soft phase Bi-rich or Pb-rich spheres are dispersedly distributed in the hard matrix Al or Cu. The phase segregation, however, easily takes place due to the density difference between the liquid matrix and the sphere.…”

Section: Introductionmentioning

confidence: 99%

Directional Solidification and Microstructural Refinement of Immiscible Alloys

Zhao

et al. 2008

Metall Mater Trans A

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The directional solidification has been carried out for Al-9, 12Bi, and Al-3.4Bi-2.5Si (wt pct) alloys in a Bridgman apparatus with a transversal magnetic field. The microstructure of the alloy samples solidified at different melt superheat (MS) temperatures and magnetic field strengths has been observed. It was indicated that the average size of the Bi-rich spheres and the primary dendrite spacing decrease with the increase of the melt superheat (MS) temperature. The effect of the MS treatment on the interface morphology and the interaction between the spheres and the solidification interface has been discussed for the immiscible alloys. Moreover, the influence of the transverse magnetic field on the solidification microstructure was analyzed. The larger the magnetic field strength, the smaller is the average size of the spheres. The effects of the magnetic field on the spheres' nucleation, the spatial movement, and the collision between the spheres were discussed. The application of the magnetic field results in the formation of the sphere-aligned structure even for the hypermonotectic alloys, and the formation mechanism has been explained in this article.

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“…are metastable immiscible alloys [1], they have broad application prospects when the X-rich phase dispersed in the Cu-matrix when Cu is richer than X element of these alloys [2][3][4]. However, since the segregation structure easily formed during solidification of these alloys, their application has been limited.…”

Section: Introductionmentioning

confidence: 99%

Growth Morphologies of Fe Nanoparticles in the Copper Alloy

Zheng¹,

Wang²,

Shi³

2017

Proceedings of the 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)

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In this paper, based on experiments, by study the nanoparticles crystallized in Cu-Fe alloy, research possibility to form situ nanoparticles dispersion in matrix of immiscible Cu-X alloy. Nanoparticles of Fe-rich dispersed in copper alloy were obtained by experimental methods. Confirmed by adding elements Fe (1-3%) and Co and by thermodynamic controlling, Fe-rich nanoparticles dispersed in matrix of the copper cast alloy can be obtained. It is proved that these Fe-rich nanoparticles and the Cu-matrix phase remains coherency relationship.

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Microstructure and superconducting properties of melt-quenched insoluble Al-Pb and Al-Pb-Bi alloys

Cited by 47 publications

References 7 publications

Effect of Rare-Earth Ce on Macrosegregation in Al-Bi Immiscible Alloys

Effect of Rare-Earth Ce on Macrosegregation in Al-Bi Immiscible Alloys

Directional Solidification and Microstructural Refinement of Immiscible Alloys

Growth Morphologies of Fe Nanoparticles in the Copper Alloy

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