Effect of high pressure torsion at different temperatures on the local atomic structure of amorphous Fe-Ni-B alloys

Сундеев, Р.В.; Глезер, А. М.; Менушенков, А. П.; Шалимова, А. В.; Chernysheva, Olga; Umnova, N. V.

doi:10.1016/j.matdes.2017.08.062

Cited by 30 publications

(11 citation statements)

References 18 publications

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“…In addition, HPT might be used to fabricate crack-free bulk samples from Fe 73.9 Cu 1 Nb 3 Si 15.5 B 6.6 melt-spun ribbons [ 61 ]. The initially amorphous Fe-Ni-B alloys remain amorphous after HPT at 77 K, while HPT at 293 K leads to a partial crystallization of the amorphous state [ 62 , 63 ]. The saturation magnetization and coercivity of Fe-Ni-B change significantly after HPT processing with respect to the initial state.…”

Section: Application Of Hpt To Ternary Magnetic Alloys and Intermetal...mentioning

confidence: 99%

A Review of Ultrafine-Grained Magnetic Materials Prepared by Using High-Pressure Torsion Method

et al. 2022

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High-pressure torsion (HPT) is a severe plastic deformation technique where a sample is subjected to torsional shear straining under a high hydrostatic pressure. The HPT method is usually employed to create ultrafine-grained nano-structures, making it widely used in processing many kinds of materials such as metals, glasses, biological materials, and organic compounds. Most of the published HPT results have been focused on the microstructural development of non-magnetic materials and their influence on the mechanical properties. The HPT processing of magnetic materials and its influence on the structural and magnetic properties have attracted increasing research interest recently. This review describes the application of HPT to magnetic materials and our recent experimental results on Mn3O4, Mn4N, and MnAl-based alloys. After HPT, most magnetic materials exhibit significantly reduced grain size and substantially enhanced coercivity.

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Section: Application Of Hpt To Ternary Magnetic Alloys and Intermetal...mentioning

confidence: 99%

A Review of Ultrafine-Grained Magnetic Materials Prepared by Using High-Pressure Torsion Method

et al. 2022

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“…The sample shape used for the HPT processing is conventionally in the form of a disk, however, occasionally HPT technique was also applied to specimens in the form of hollow cone [33], cylinders [34], rings [35], and U-shape samples [36]. Conventionally HPT-processing is performed at RT; however it is possible to conduct at elevated temperatures up to 1000 K [28,37,38].…”

Section: Fundamentals Of Hptmentioning

confidence: 99%

Microstructure and Mechanical Behavior of Ultrafine-grained Ni-Mo Alloys Processed by Top-Down and Bottom-Up Methods

Kapoor¹

2019

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“…For wear-resistant ferrous alloys, through addition of boron instead of alloying elements, such as V, W, Ti, etc. [9][10][11][12][13][14][15], production costs can be reduced and the manufacturing process can be simplified. High-boron multi-component alloy is a kind of new-type wear-resistant material.…”

Section: Introductionmentioning

confidence: 99%

Research on Properties of Borocarbide in High Boron Multi-Component Alloy with Different Mo Concentrations

Ren

Han

et al. 2021

Materials

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In this work, the microstructure, alloying element distribution, and borocarbide mechanical properties of high-boron multi-component alloy with Fe-2.0 wt.%B-0.4 wt.%C-6.0 wt.%Cr-x wt.%Mo-1.0%Al-1.0 wt.%Si-1.0 wt.%V-0.5 wt.%Mn (x = 0.0, 2.0, 4.0, 6.0, 8.0) are investigated. The theoretical calculation results and experiments indicate that the microstructure of high-boron multi-component alloy consists of ferrite, pearlite as a matrix and borocarbide as a hard phase. As a creative consideration, through the use of first-principles calculations, the comprehensive properties of borocarbide with different molybdenum concentrations have been predicted. The calculations of energy, state density, electron density and elastic constant of Fe2B crystal cell reveal that substitution of the molybdenum atom in the Fe2B crystal cell can remarkably improve its thermodynamic stability, bond strength, and covalent trend. For verifying the accuracy of this theoretical calculation, nano-indentation testing is carried out, the results of which indicate that the actual properties of borocarbide present favorable consistency with the theoretical calculations.

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Effect of high pressure torsion at different temperatures on the local atomic structure of amorphous Fe-Ni-B alloys

Cited by 30 publications

References 18 publications

A Review of Ultrafine-Grained Magnetic Materials Prepared by Using High-Pressure Torsion Method

A Review of Ultrafine-Grained Magnetic Materials Prepared by Using High-Pressure Torsion Method

Microstructure and Mechanical Behavior of Ultrafine-grained Ni-Mo Alloys Processed by Top-Down and Bottom-Up Methods

Research on Properties of Borocarbide in High Boron Multi-Component Alloy with Different Mo Concentrations

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