The quasicrystalline phase formation in Al–Cu–Cr alloys produced by mechanical alloying

Свиридова, Т. А.; Shevchukov, A.P.; Шелехов, Е.В.; Дьяконов, Д.Л.; Tcherdyntsev, Victor V.; Kaloshkin, S.D.

doi:10.1016/j.jallcom.2010.12.074

Cited by 12 publications

(6 citation statements)

References 26 publications

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“…Since the corresponding XRD pattern (Fig. 2b) resembles the one obtained from decagonal quasicrystal with a periodicity along 10-fold axis 1.26 nm [5] we can assume that the as-annealed sample contains a similar quasicrystalline phase (d-phase).…”

Section: Methodsmentioning

confidence: 80%

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Nanoquasicrystalline Phase in Mechanically Alloyed and Heat-Treated Al₇₃Cu₁₁Cr₁₆

et al. 2014

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X-ray diraction analysis, scanning and transmission electron microscopy, thermal analysis and measurement of chemical composition were implemented to determine structure, thermal stability and chemical composition of the decagonal quasicrystal in Al73Cu11Cr16 alloy produced by long-term mechanical alloying of elemental powders followed by annealing at 700• C. According to the TEM investigation such a technique permits to produce a single-phase nanostructural quasicrystal with grain size about 60 nm. Dierential thermal analysis revealed that the decagonal phase does not exist above 923• C and undergoes incongruent two-stage melting coming to the end at 1100• C.

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Section: Methodsmentioning

confidence: 80%

“…In our previous works a similar procedure was applied to obtain decagonal quasicrystals in AlCuCr system [4,5].…”

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confidence: 99%

Nanoquasicrystalline Phase in Mechanically Alloyed and Heat-Treated Al₇₃Cu₁₁Cr₁₆

et al. 2014

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“…One can obtain more detailed information on the interpretation of transition metals ACAR spectra and the approximation method from the articles [24,25]. It was mentioned earlier [17][18][26][27][28][29][30] that the intensity of the 15-18 mrad wide Gaussian-3 correlates with the d-shell occupancy of transition group metals. The above-mentioned works contain the study of positron annihilation in transition metals.…”

Section: Resultsmentioning

confidence: 99%

D-shell of iron atom of the amorphous FeCr₁₅B₁₅alloy effective charge change during the crystallization

Khmelevsky

Funtikov

Aksenenko

et al. 2017

Mechanics & Industry

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An amorphous metal alloy of the FeCrB system was studied during the crystallization by thermal annealing. Such an alloy is a perspective candidate for the role of an intermediate layer in multilayer covering for cutting tools. By the using of the thermoelectric voltage measurement, positron annihilation spectroscopy, and X-ray photoelectron spectroscopy, the conjoint research was performed for the study of the conduction and delectron band state in the amorphous metallic alloy FeCr 15 B 15 , which intersects each other by the energy. The results of all the studies agree with each other and indicate the change in the effective charge of the d-shell by 1 electron during crystallization.

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“…Fabrication of single-phased quasicrystalline alloys can be achieved by several means, ranging from nonconventional to conventional metallurgical methods. They include mechanical alloying [65,66], rapid solidification processes, such as meltspinning [67], gas-atomization [2], and Cu-mold quenching [68], thermal spraying and film deposition [69] and also by conventional casting [2]. Usually, single-phased quasicrystals are obtained from metallic systems that can form these phases under more stable (low cooling rates) processing conditions.…”

Section: Manufacturing Quasicrystals and Their Compositesmentioning

confidence: 99%

Recent developments on fabrication of Al‐matrix composites reinforced with quasicrystals: From metastable to conventional processing

Wolf

Bolfarini

Kiminami

2021

Journal of Materials Research

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Quasicrystalline alloys and their composites have been extensively studied due to their complex atomic structures, mechanical properties, and their unique tribological and thermal behaviors. However, technological applications of these materials have not yet come of age and still require additional developments. In this review, we discuss the recent advances that have been made in the last years toward optimizing fabrication processes and properties of Al‐matrix composites reinforced with quasicrystals. We discuss in detail the high‐strength rapid‐solidified nanoquasicrystalline composites, the challenges involved in their manufacturing processes and their properties. We also bring the latest findings on the fabrication of Al‐matrix composites reinforced with quasicrystals by powder metallurgy and by conventional metallurgical processes. We show that substantial developments were made over the last decade and discuss possible future studies that may result from these recent findings.

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The quasicrystalline phase formation in Al–Cu–Cr alloys produced by mechanical alloying

Cited by 12 publications

References 26 publications

Nanoquasicrystalline Phase in Mechanically Alloyed and Heat-Treated Al₇₃Cu₁₁Cr₁₆

Nanoquasicrystalline Phase in Mechanically Alloyed and Heat-Treated Al₇₃Cu₁₁Cr₁₆

D-shell of iron atom of the amorphous FeCr₁₅B₁₅alloy effective charge change during the crystallization

Recent developments on fabrication of Al‐matrix composites reinforced with quasicrystals: From metastable to conventional processing

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The quasicrystalline phase formation in Al–Cu–Cr alloys produced by mechanical alloying

Cited by 12 publications

References 26 publications

Nanoquasicrystalline Phase in Mechanically Alloyed and Heat-Treated Al73Cu11Cr16

Nanoquasicrystalline Phase in Mechanically Alloyed and Heat-Treated Al73Cu11Cr16

D-shell of iron atom of the amorphous FeCr15B15alloy effective charge change during the crystallization

Recent developments on fabrication of Al‐matrix composites reinforced with quasicrystals: From metastable to conventional processing

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Product

Resources

About

Nanoquasicrystalline Phase in Mechanically Alloyed and Heat-Treated Al₇₃Cu₁₁Cr₁₆

Nanoquasicrystalline Phase in Mechanically Alloyed and Heat-Treated Al₇₃Cu₁₁Cr₁₆

D-shell of iron atom of the amorphous FeCr₁₅B₁₅alloy effective charge change during the crystallization