The role of cementite in the formation of magnetic hysteresis properties of plastically deformed high-carbon steels: II. Magnetic properties of patented wire made of steel 70

Чулкина, А. А.; Ulyanov, A.N.; Arsent'eva, N. B.; Zagainov, A. V.; Горкунов, Э. С.; Задворкин, С. М.; Somova, V. M.

doi:10.1134/s1061830906070059

Cited by 14 publications

(6 citation statements)

References 3 publications

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“…As illustrated in Figure b,c, all of the three FCF samples exhibit soft magnetic properties, and both the saturation magnetization M s and coercivity H cj exhibit synchronous positive correlation with increasing calcining temperature. The gradually enhanced crystallinity of magnetic Fe 3 C leads to the linearly increase in M s from 32.316 to 44.573 emu/g. − On the other hand, stronger thermal stress-induced lattice distortion confirmed by XRD might promote the phase transformation of Fe 3 C from the low-coercivity state to the high-coercivity state and consequently contribute to the rapidly increase in coercivity from 98.47 to 364.48 Oe …”

Section: Resultsmentioning

confidence: 99%

Hollow Beaded Fe₃C/N-Doped Carbon Fibers toward Broadband Microwave Absorption

Guo

Chen

et al. 2022

ACS Appl. Mater. Interfaces

138

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Microwave-absorbing materials have attracted enormous attention for electromagnetic (EM) pollution. Herein, hollow beaded Fe3C/N-doped carbon fibers (Fe3C/NCFs) were synthesized through convenient electrospinning and subsequent thermal treatment. The special hollow morphology of the samples is conducive to achieve lightweight and broadband microwave absorption properties. The thermal treatment temperatures exhibit a significant impact on conductivity and EM properties. The broadest effective absorption bandwidth (EAB) is 5.28 GHz at 2.16 mm when the thermal treatment temperature is 700 °C, and the EAB can cover 13.13 GHz with a tunable absorber thickness from 1.0 to 3.5 mm when the thermal treatment temperature is 750 °C. The excellent microwave absorption properties of the samples are due to the synergistic effect of impedance matching and strong EM energy attenuation abilities. Hence, the magnetic hollow beaded Fe3C/NCFs are expected to be an attractive candidate material as a lightweight and efficient microwave absorber in the future.

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Section: Resultsmentioning

confidence: 99%

Hollow Beaded Fe₃C/N-Doped Carbon Fibers toward Broadband Microwave Absorption

Guo

Chen

et al. 2022

ACS Appl. Mater. Interfaces

138

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“…Focusing on pearlitic steel, References [ 18 , 27 , 28 , 29 ] describe the interplay of coercivity and plastic deformation. In [ 18 ], the changes of the magnetic properties of patented steels containing 0.24 and 0.70 wt.% C are discussed.…”

Section: Resultsmentioning

confidence: 99%

Soft Magnetic Properties of Ultra-Strong and Nanocrystalline Pearlitic Wires

et al. 2021

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The paper describes the capability of magnetic softening of a coarse-grained bulk material by a severe deformation technique. Connecting the microstructure with magnetic properties, the coercive field decreases dramatically for grains smaller than the magnetic exchange length. This makes the investigation of soft magnetic properties of severely drawn pearlitic wires very interesting. With the help of the starting two-phase microstructure, it is possible to substantially refine the material, which allows the investigation of magnetic properties for nanocrystalline bulk material. Compared to the coarse-grained initial, pearlitic state, the coercivities of the highly deformed wires decrease while the saturation magnetization values increase—even beyond the value expectable from the individual constituents. The lowest coercivity in the drawn state is found to be 520 A m−1 for a wire of 24-µm thickness and an annealing treatment has a further positive effect on it. The decreasing coercivity is discussed in the framework of two opposing models: grain refinement on the one hand and dissolution of cementite on the other hand. Auxiliary measurements give a clear indication for the latter model, delivering a sufficient description of the observed evolution of magnetic properties.

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“…Согласно современным представле-ниям, морфология цементита в составе эвтектоида накладывает существенный отпечаток на магнитные характеристики стали. Измерение магнитных свойств, прежде всего коэрцитив-ной силы, может быть основой для прогнозирования прочности перлитной стали, поскольку коэрцитивная сила чувствительна как к дисперсности перлита, так и морфологии карбидных (и конечно ферритных) частиц в нем [1][2][3][4].…”

Section: Introductionunclassified

“…Влияние морфологии и характера распределения избыточного цементита на магнит-ные свойства заэвтектоидных сталей изучено в меньшей степени, однако имеются сравни-тельные данные по глобулярному и сетчатому избыточному цементиту [2][3].…”

Section: Introductionunclassified

Dependence of mechanical and magnetic properties of hypereutectoid steel on excess cementite morphology

Burov¹,

Khudorozhkova²

2016

DREAM

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A set of physical and mechanical properties of the U13 steel depending on the morphology of the excess hypereutectoid cementite phase has been revealed. Excess cementite is represented by globules with uniform or layered distribution, by Widmanstätten type needles and by a cementite network. Samples with layer distribution of globular excess cementite demonstrate a better set of strength and plasticity, whereas the worst set of properties are characteristic of samples with a cementite network. The investigated magnetic properties can serve as a basis for the development of methods for electromagnetic testing of excess cementite morphology and the level of strength of hypereutectoid steels after thermomechanical treatment. Keywords

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The role of cementite in the formation of magnetic hysteresis properties of plastically deformed high-carbon steels: II. Magnetic properties of patented wire made of steel 70

Cited by 14 publications

References 3 publications

Hollow Beaded Fe₃C/N-Doped Carbon Fibers toward Broadband Microwave Absorption

Hollow Beaded Fe₃C/N-Doped Carbon Fibers toward Broadband Microwave Absorption

Soft Magnetic Properties of Ultra-Strong and Nanocrystalline Pearlitic Wires

Dependence of mechanical and magnetic properties of hypereutectoid steel on excess cementite morphology

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The role of cementite in the formation of magnetic hysteresis properties of plastically deformed high-carbon steels: II. Magnetic properties of patented wire made of steel 70

Cited by 14 publications

References 3 publications

Hollow Beaded Fe3C/N-Doped Carbon Fibers toward Broadband Microwave Absorption

Hollow Beaded Fe3C/N-Doped Carbon Fibers toward Broadband Microwave Absorption

Soft Magnetic Properties of Ultra-Strong and Nanocrystalline Pearlitic Wires

Dependence of mechanical and magnetic properties of hypereutectoid steel on excess cementite morphology

Contact Info

Product

Resources

About

Hollow Beaded Fe₃C/N-Doped Carbon Fibers toward Broadband Microwave Absorption

Hollow Beaded Fe₃C/N-Doped Carbon Fibers toward Broadband Microwave Absorption