Effect of heat treatment on phase transformations and magnetization of amorphous Co69Fe4Cr4Si12B11 microwires

Elmanov, G.N.; Чернавский, П. А.; Kozlov, Ilya; Джумаев, П. С.; Kostitsyna, E.V.; Тарасов, В. П.; Гудошников, С.А.

doi:10.1016/j.jallcom.2018.01.114

Cited by 21 publications

(8 citation statements)

References 18 publications

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“…For the as-cast sample of Fe 62 Co 9 W 1 Y 8 B 20 made by injection-casting, the size of the Fe 5 Y andαFe crystalline grains was found to be very small. As suggested by many Mössbauer studies of FeCoB [26,33] alloys, there are areas of differing iron concentrations present within the volume of these materials; that is, within the amorphous matrix, some areas are more favorable for the creation of crystalline grains. It can be assumed from the iron-rich amorphous matrix (the low-field component from the Mössbauer spectra) that iron and yttrium were precipitated to create the Fe 5 Y and αFe phases.…”

Section: Resultsmentioning

confidence: 99%

“…It can be assumed from the iron-rich amorphous matrix (the low-field component from the Mössbauer spectra) that iron and yttrium were precipitated to create the Fe 5 Y and αFe phases. The re-grouping of the iron and yttrium atoms within the alloy volume in certain preferred regions contributed towards the formation of areas where the atomic arrangement favors the creation of the different phases (which could be the high-field component in the Mössbauer spectra [26,34]). Table 1.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, the technique has to be adapted for each chemical composition. The nanocrystallization of an alloy could also be achieved using an appropriate thermal treatment of the amorphous alloy [25,26]. Depending on the time duration and temperature of the annealing process, the structure of an amorphous alloy will either become relaxed, or it will change into a two-phase structure consisting of an amorphous matrix with crystalline grains.…”

Section: Introductionmentioning

confidence: 99%

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Investigation into the Effect of Thermal Treatment on the Obtaining of Magnetic Phases: Fe5Y, Fe23B6, Y2Fe14B and αFe within the Amorphous Matrix of Rapidly-Quenched Fe61+xCo10−xW1Y8B20 Alloys (Where x = 0, 1 or 2)

et al. 2020

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The paper presents the results of research on the structure and magnetic properties of Fe61+xCo10−xW1Y8B20 alloys (where x = 0, 1 or 2). The alloys were produced using two production methods with similar cooling rates: Injection casting and suction casting. The alloy samples produced were subjected to isothermal annealing at 940 K for 10 min. The structure of the materials was examined using X-ray diffraction. Isothermal annealing has led to the formation of various crystallization products depending on the chemical composition of the alloy and the structure of the alloy in a solidified state. In two cases, the product of crystallization was the hard magnetic phase Y2Fe14B. However, the mechanism of this phase formation was different in both cases. The magnetic properties of alloys were tested using a vibrating sample magnetometer and a Faraday magnetic balance. It is found that the grain crystallite size of the crystalline phases have a decisive influence on the value of the coercive field (especially in the case of hard magnetic phases). It has been shown that privileged areas can already be created during the production process. Their presence determines the crystallization process.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation into the Effect of Thermal Treatment on the Obtaining of Magnetic Phases: Fe5Y, Fe23B6, Y2Fe14B and αFe within the Amorphous Matrix of Rapidly-Quenched Fe61+xCo10−xW1Y8B20 Alloys (Where x = 0, 1 or 2)

et al. 2020

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“…Так, в ряде работ, посвященных АФМП, подвергнутым последующей термообработке в различных условиях, отмечалось сильное влияние режима отжига на механические параметры, намагниченность, магнитную анизотропию, магнитострикцию, коэрцитивную силу, точку Кюри, электросопротивление и др. характеристики микропроводов [9][10][11][12][13][14][15][16].…”

Section: Introductionunclassified

Влияние Токового Отжига На Температурные Зависимости Магнитоимпеданса В Аморфных Микропроводах

Джумъазода¹,

Панина²,

Неъматов³

et al. 2019

Журнал Технической Физики

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Поступило в Редакцию 29 ноября 2018 г. В окончательной редакции 29 ноября 2018 г. Принято к публикации 29 января 2019 г.Миниатюризация устройств магнитной электроники и микросистемной техники во многом зависит от оптимального выбора функциональных материалов (сред), используемых в качестве рабочего тела, в частности, чувствительных элементов различных сенсорных систем (например, датчиков локальных магнитных полей, механических напряжений и/или деформаций, температуры и т. п.). Одним из перспективных материалов являются ферромагнитные микропровода, состоящие из жилы аморфных сплавов в стеклянной оболочке, проявляющие высокую чувствительность магнитоимпеданса (МИ) к изменению указанных внешних факторов -эффект гигантского МИ (ГМИ). При этом для множества приложений важным является температурная стабильность рабочей характеристики таких устройств.

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“…Co-based alloys are more suitable for long-term implant under poor load conditions 9,10 . Some studies [10][11][12][13] indicated that Co-based alloys are very sensitive to heat treatment process, and different treatment temperature and holding time during the solution and aging will greatly affect the microstructures, mechanical properties and corrosion resistance of this alloy. For example, Laser cladding Cobased-VN alloy-Ti composite coatings was aging treated at 550 °C, 650 °C and 750 °C, respectively.…”

Section: Introductionmentioning

confidence: 99%

Effect of Solid Solution Temperature on Microstructure and Corrosion Resistance of CoNiCrMo Alloy

et al. 2019

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Influence of solid solution temperature on microstructures and corrosion properties of CoNiCrMo alloy were investigated by means of optical microscopy (OM), scanning electron microscope (SEM) and electronic differential system. The corrosion resistance of CoNiCrMo alloy in 0.9%NaCl aqueous solution was also investigated. The results indicated that with the increase of solution treatment temperature, the dendrites of CoNiCrMo alloy gradually disappeared. Thus, the corrosion resistance of the alloy decreased. When the solution temperature is 1200°C, the dendrites almost disappeared and most carbide dissolved, and begins to spheroidization. The corrosion resistance of CoNiCrMo alloy treated at 1000°C for 1h is the highest than the one at 1100 °C and 1200°C. Its self-corrosion potential is-424mV and self-corrosion current density is 1.02×10-8 A/cm 2 .

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Effect of heat treatment on phase transformations and magnetization of amorphous Co69Fe4Cr4Si12B11 microwires

Cited by 21 publications

References 18 publications

Investigation into the Effect of Thermal Treatment on the Obtaining of Magnetic Phases: Fe5Y, Fe23B6, Y2Fe14B and αFe within the Amorphous Matrix of Rapidly-Quenched Fe61+xCo10−xW1Y8B20 Alloys (Where x = 0, 1 or 2)

Investigation into the Effect of Thermal Treatment on the Obtaining of Magnetic Phases: Fe5Y, Fe23B6, Y2Fe14B and αFe within the Amorphous Matrix of Rapidly-Quenched Fe61+xCo10−xW1Y8B20 Alloys (Where x = 0, 1 or 2)

Влияние Токового Отжига На Температурные Зависимости Магнитоимпеданса В Аморфных Микропроводах

Effect of Solid Solution Temperature on Microstructure and Corrosion Resistance of CoNiCrMo Alloy

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