Features of polytherms of the viscosity of Fe–B melts

Bel’tyukov, A. L.; Goncharov, O. Yu.; Lad’yanov, V. I.

doi:10.1134/s0036024417100065

Cited by 10 publications

(10 citation statements)

References 13 publications

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“…A time of the same order of magnitude needed to reach a steady state in other molten alloys was found, for example, in the Al95Y5 alloy [44,45]. Furthermore, similar behavior was observed in measurements of the kinematic viscosity, for example, in Al-rich Al-Fe melts [46], in FeB [47] as well as in BiZn melts [48]. The same phenomenon was also seen earlier in many ternary alloys [2,49].…”

Section: Resultssupporting

confidence: 78%

Temperature and time dependent structure of the molten Ni81P19 alloy by neutron diffraction

Dahlborg

Gasser

Cuello

et al. 2018

Journal of Non-Crystalline Solids

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The temperature and time dependent structure of molten NiP alloy of eutectic composition has been studied by neutron diffraction. Ni particles were found to exist in the melt at temperatures at least up to about 150 degrees above liquidus. The amount varies reversibly as temperature increases but decays slowly with time. Remarkably, particles still exist even after that the melt has been kept more than 30 hours at different temperatures in the molten state. The static structure factor and the pair distribution function obtained at 1050 o C are presented.

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Section: Resultssupporting

confidence: 78%

Temperature and time dependent structure of the molten Ni81P19 alloy by neutron diffraction

Dahlborg

Gasser

Cuello

et al. 2018

Journal of Non-Crystalline Solids

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“…In binary melts Fe-Si [25] and Fe-B [30], the temperature dependences of the kinematic viscosity were obtained, which were similar to those for the Fe 72.5 Cu 1 Nb 2 Mo 1.5 Si 14 B 9 and Fe 84.5 Cu 0.6 Nb 0.5 Si 1.5 B 8.6 P 4 C 0.3 melts. The viscosity of the Fe-Si melt varied smoothly during heating and cooling.…”

Section: Multicomponent Meltssupporting

confidence: 72%

“…An anomaly was observed in the Fe-B melt, which manifested itself in a local increase in viscosity near the critical temperature. The appearance of the anomaly in boron-containing melts was associated with the rearrangement of FeBand Fe 2 B-based clusters, which transform with increasing temperature into Fe 4 B- [30] or Fe 3 B-based clusters [31]. A local increase in viscosity near the critical temperature is not observed in the Fe 72.5 Cu 1 Nb 2 Mo 1.5 Si 14 B 9 melt.…”

Section: Multicomponent Meltsmentioning

confidence: 93%

Nanocrystalline Soft Magnetic Iron-Based Materials from Liquid State to Ready Product

Цепелев

Starodubtsev

2021

Nanomaterials

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The review is devoted to the analysis of physical processes occurring at different stages of production and application of nanocrystalline soft magnetic materials based on Fe–Si–B doped with various chemical elements. The temperature dependences of the kinematic viscosity showed that above a critical temperature, the viscosity of multicomponent melts at the cooling stage does not coincide with the viscosity at the heating stage. Above the critical temperature, the structure of the melt is more homogeneous, the amorphous precursor from such a melt has greater plasticity and enthalpy of crystallization and, after nanocrystallization, the material has a higher permeability. The most effective inhibitor elements are insoluble in α-Fe and form a smoothed peak of heat release during crystallization. On the other hand, the finest nanograins and the highest permeability are achieved at a narrow high-temperature peak of heat release. The cluster magnetic structure of a nanocrystalline material is the cause of magnetic inhomogeneity, which affects the shape of the magnetic hysteresis loop and core losses.

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“…Iз пiдвищенням температури нагрiвання до T L + 500 К висота пiка зменшилась утричi. Утворення пiкiв на кривих в'язкостi пов'язують з утворенням комплексiв на основi залiза [6]. За результатами дослiджень сплавiв системи Fe-B з умiстом бору 15 ат.…”

Section: вступunclassified

“…3). Нашi результати корелюють iз результатами, опублiкованими в працi [6]: для сплавiв з умiстом бору 15 − 22 % (ат.) температура гiстерезису мiж полiтермами нагрiву та охолодження збiльшилась до 1700 К. Зi збiльшенням умiсту бору в сплавi температура пiдвищується: так, за вмiсту 23 % (ат.)…”

Section: -4unclassified