Characterization of nanoscaled heterogeneities in mechanically alloyed and compacted CuFe

Wanderka, N.; Czubayko, U.; Naundorf, V.; Ivchenko, V. A.; Yermakov, A. Ye.; Уймин, М. А.; Wollenberger, H.

doi:10.1016/s0304-3991(01)00104-8

Cited by 17 publications

(19 citation statements)

References 8 publications

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“…Recent experiments on small angle x-ray scattering of Fe-Cu, prepared by ball milling, suggest large heterogeneities on a nanometer scale. 27,28 Similar behavior can also be predicted in the present case: the mobility of Fe in Ag is higher than that of Ag in Fe. The same holds for the reverse process, hence the concentration of energetic Fe atoms in Ag atoms is lower than that of Ag atoms in Fe atoms, as we have observed in samples B1 and B2.…”

Section: Samplesupporting

confidence: 87%

Interface structure of Fe/Ag multilayers prepared by pulsed laser deposition

et al. 2003

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Fe/Ag multilayers with single layer thicknesses in the nanometer range have been deposited on Si͑100͒ using pulsed laser deposition. Conversion electron Mössbauer spectroscopy in conjunction with Rutherford backscattering spectrometry and x-ray reflectivity have been used for the evaluation of the interface structure of these multilayers. In the Fe-Ag system, with a large positive heat of mixing, a solid solution of bcc Fe͑Ag͒ has been found by placing an enriched 57 Fe marker layer at different distances to the multilayer interfaces. The interface structure mainly depends on dynamic effects during the deposition processes. From the analyses, we have obtained an asymmetric intermixing at lower and upper interfaces of the individual Fe layers: the intermixing of Fe into Ag is lower than that of Ag into Fe. The studies of the interface structure were performed by varying parameters such as the thickness of the elemental layers and the target-to-substrate distance during the deposition process.

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Section: Samplesupporting

confidence: 87%

Interface structure of Fe/Ag multilayers prepared by pulsed laser deposition

et al. 2003

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“…Fe: MA of Cu-Fe powder or SPD treatment of two phase alloy leads to the formation of supersaturated fcc solid solutions with up to 60-70 at.% Fe in Cu [68][69][70][71], whereas equilibrium state has shown immiscibility between Cu and Fe [6]. Fu et al have found that by powder metallurgy (combustion synthesis) nanostructured matrix with dendrite composite Cu-Fe alloy can be successfully obtained [72].…”

Section: Stacking Fault Energies In Copper In 3d Transition Metal Alloysmentioning

confidence: 99%

Generalised stacking fault energies of copper alloys - density functional theory calculations

Muzyk

Kurzydłowski

2019

J min metall B Metall

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Generalised stacking fault energies of copper alloys have been calculated using density functional theory. Stacking fault energy of copper alloys is correlated with the d-electrons number of transition metal alloying element. The tendency to twiningis also modified by the presence of alloying element in the deformation plane. The results suggest that Cu-transition metal alloys with such elements as Cr, Mo, W, Mn, Re are expected to exhibit great work hardening rate due to the tendency to emission of the partial dislocations.

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“…Only ≈4 at% Fe can be dissolved into the Cu matrix with fcc structure and, conversely, ≈10 at% Cu can dissolve into the Fe matrix with body-centered cubic (bcc) structure near their respective melting points [7]. Metastable solid solutions have been prepared by different approaches, such as mechanical alloying [8][9][10][11][12][13][14] and physical vapor deposition techniques [15][16][17]. Single crystalline Fe x Cu 1−x alloys over the entire composition range have been prepared successfully on a GaAs (001) substrate via molecular beam epitaxy for film thicknesses up to 8 nm [18].…”

Section: Introductionmentioning

confidence: 99%