Physics of Metals and Metallography最新文献_第7页

Initiation of the Shape Memory Effect by Fast Neutron Irradiation 快速中子辐照引发的形状记忆效应

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-05-08 DOI: 10.1134/s0031918x23602664

V. I. Bobrovskii, S. V. Afanasyev, V. I. Voronin, V. A. Kazantsev, N. V. Kataeva, V. D. Parkhomenko, N. V. Proskurnina, V. V. Sagaradze

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Morphology of Dissipative Structures Formed during the High-Temperature Synthesis of MgB2 Compound 高温合成 MgB2 复合物过程中形成的耗散结构形态学

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-05-08 DOI: 10.1134/s0031918x23602779

V. O. Esin

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Creation of Submicrometer Magnetoresistive Tunnel Junction CoFeB/MgO/CoFeB Using an HSQ/PMMA Resistive Mask 利用 HSQ/PMMA 电阻掩模创建亚微米级磁阻隧道结 CoFeB/MgO/CoFeB

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-05-08 DOI: 10.1134/s0031918x23602962

I. A. Fedotov, I. Yu. Pashen’kin, E. V. Skorokhodov, N. S. Gusev

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Features of Decomposition and the Mechanical Properties of an Aging Shape Memory Ti49Ni51 Alloy Subjected to Heat Treatment 经过热处理的老化形状记忆 Ti49Ni51 合金的分解特征和力学性能

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-05-08 DOI: 10.1134/s0031918x23602809

N. N. Kuranova, V. V. Makarov, V. G. Pushin

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Peculiarities of Magnetization Processes of Cobalt-Based Amorphous Alloy Ribbons in the As-Quenched State 钴基非晶合金带在淬火状态下的磁化过程的特殊性

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-05-08 DOI: 10.1134/s0031918x23602846

N. A. Skulkina, E. S. Nekrasov, Yu. D. Eremin, N. V. Kuznetsov

{"title":"Peculiarities of Magnetization Processes of Cobalt-Based Amorphous Alloy Ribbons in the As-Quenched State","authors":"N. A. Skulkina, E. S. Nekrasov, Yu. D. Eremin, N. V. Kuznetsov","doi":"10.1134/s0031918x23602846","DOIUrl":"https://doi.org/10.1134/s0031918x23602846","url":null,"abstract":"Abstract—Studies of soft magnetic Co-based amorphous alloy AMAG-172 (Co–Ni–Fe–Cr–Mn–Si–B) produced by different manufacturers show that, in the as-quenched state, the nonuniformity of magnetic characteristics across the width of ribbon produced in the PC MSTATOR (Borovichi) is substantially lower. However, the nonuniformity across the ribbon thickness takes place, which favors the formation of bimodal field dependence of the magnetic permeability. The stepped shape of initial portions of magnetization curves in the range of the first maximum of magnetic permeability and intermittent character of the magnetization processes in weak fields allow us to conclude that the formation of the first maximum in the field dependence for the ribbons produced in the PC MSTATOR is related to the independent magnetization reversal of the surface layer. The base layer of the ribbon participates in the formation of the second maximum. In the case of samples manufactured in the JSC NIIMET, the smoothed shape of stepped initial portion of the magnetization curve corresponds to progressive involvement of the base layer of ribbon into the magnetization and magnetization reversal processes. An analysis of hysteresis loops shows that the field bias is related to the interlayer interaction of the surface and the bulk of the ribbon, whereas the formation of asymmetric hysteresis loops occurs with the participation of the second layer with gradual implementation of it into the magnetization and magnetization reversal processes.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"85 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140942337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Transverse Magneto-Optical Kerr Effect Enhancement in Si–Ni Nanogratings by Mie and Surface Lattice Resonances 通过米氏共振和表面晶格共振增强硅镍纳米晶中的横向磁光克尔效应

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-05-08 DOI: 10.1134/s0031918x23603074

K. A. Mamian, A. Yu. Frolov, V. V. Popov, A. A. Fedyanin

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Stress-Dependent Magnetization Processes in Cobalt-Based Amorphous Microwires 钴基非晶微线中的应力磁化过程

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-05-08 DOI: 10.1134/s0031918x23602937

S. A. Evstigneeva, O. Lutsenko, T. Yu. Ganzhina, V. V. Miroshkina, N. A. Yudanov, M. A. Nemirovich, L. V. Panina

{"title":"Stress-Dependent Magnetization Processes in Cobalt-Based Amorphous Microwires","authors":"S. A. Evstigneeva, O. Lutsenko, T. Yu. Ganzhina, V. V. Miroshkina, N. A. Yudanov, M. A. Nemirovich, L. V. Panina","doi":"10.1134/s0031918x23602937","DOIUrl":"https://doi.org/10.1134/s0031918x23602937","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>Soft magnetic materials with high magnetic susceptibility in response to the influence of alternating magnetic fields, generate an inductive electric voltage in the receiving coil, the spectrum of which contains higher harmonics. This is due to the nonlinear dependence of magnetization on the magnetic field, and the amplitudes of higher harmonics make a significant contribution to the overall signal if an external field leads to magnetic saturation. Magnetic susceptibility and saturation field are largely determined by magnetoelastic interactions in amorphous ferromagnets, respectively, the amplitudes of higher harmonics should depend on external mechanical stresses. In this work, we study the processes of magnetization reversal in amorphous microwires of two compositions: Co71Fe5B11Si10Cr3 and Co66.6Fe4.28B11.51Si14.48Ni1.44Mo1.69 under the action of external tensile stresses. For the first composition, mechanical stresses exceeding a certain limit (higher than 350 MPa) lead to the transformation of the magnetic hysteresis from a bistable type to an inclined one. In this case, a sharp change of the harmonic spectrum is observed. In microwires of the second composition with an initially inclined loop, external stresses cause a monotonous increase in the slope of the hysteresis loop (a decrease in susceptibility). In this case, the amplitudes of higher harmonics change significantly at low stresses, lower than 100 MPa. The results were obtained by magnetization reversal of microwire samples using a system of flat coils, which demonstrates the potential of using these materials as wireless sensors of mechanical stresses with remote reading.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"125 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140925964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Effect of Temperature and Rate Treatment Parameters on the Structural Phase State and Properties of Ti2AlNb Titanium Aluminide-Based Alloy 温度和速率处理参数对 Ti2AlNb 钛铝基合金结构相态和性能的影响

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-04-21 DOI: 10.1134/s0031918x2360238x

S. L. Demakov, F. V. Vodolazskii, A. G. Illarionov, M. A. Shabanov, M. S. Karabanalov

引用次数: 0

Hyperfine Interactions in Dichalcogenides CrxNbSe2 (x = 0.33, 0.5): A 93Nb NMR Study 二卤化物 CrxNbSe2 (x = 0.33, 0.5) 中的超细相互作用：93Nb NMR 研究

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-04-21 DOI: 10.1134/s0031918x23602524

A. G. Smolnikov, Yu. V. Piskunov, V. V. Ogloblichev, A. F. Sadykov, M. E. Kashnikova, N. A. Utkin, A. P. Gerashchenko, D. F. Akramov, N. V. Selezneva, N. V. Baranov

{"title":"Hyperfine Interactions in Dichalcogenides CrxNbSe2 (x = 0.33, 0.5): A 93Nb NMR Study","authors":"A. G. Smolnikov, Yu. V. Piskunov, V. V. Ogloblichev, A. F. Sadykov, M. E. Kashnikova, N. A. Utkin, A. P. Gerashchenko, D. F. Akramov, N. V. Selezneva, N. V. Baranov","doi":"10.1134/s0031918x23602524","DOIUrl":"https://doi.org/10.1134/s0031918x23602524","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>For the first time, an 93Nb NMR study of dichalcogenides CrxNbSe2 (x = 0.33, 0.5) in the paramagnetic state was performed. Analysis of the 93Nb NMR spectra revealed the presence in CrxNbSe2 of three magnetically nonequivalent niobium positions, whose immediate environment contains 0, 1, and 2 chromium ions, respectively. For each Nb position with a different number of chromium atoms in the immediate environment in CrxNbSe2 (x = 0.33, 0.5), the values of the components of the magnetic shift and electric field gradient tensors at the position of the niobium nuclei were determined. Evidence was obtained of the formation in Cr0.33NbSe2 of the ordering of chromium ion positions in the ab plane into a (sqrt 3 )a0 × (sqrt 3 )a0 superstructure. On the other hand, in Cr0.5NbSe2, no obvious indications of the formation of any superstructure of chromium ion positions were found. It has been established that the overlap of the 4d and 5s shells of niobium ions and the 3d orbitals of chromium leads to the appearance of a positive hyperfine field induced by the magnetic moments of chromium on Nb nuclei. From the temperature dependences of the shift and susceptibility in Cr0.5NbSe2, an estimate of these induced hyperfine fields is made.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"79 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140624649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Magnetic State of Cobalt in Layered Chalcogenide Fe4Co3Se8 层状钙钛矿 Fe4Co3Se8 中钴的磁性状态

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-04-21 DOI: 10.1134/s0031918x23602469

Yu. V. Piskunov, V. V. Ogloblichev, A. F. Sadykov, D. F. Akramov, A. G. Smolnikov, A. P. Gerashchenko, N. V. Selezneva, N. V. Baranov

{"title":"Magnetic State of Cobalt in Layered Chalcogenide Fe4Co3Se8","authors":"Yu. V. Piskunov, V. V. Ogloblichev, A. F. Sadykov, D. F. Akramov, A. G. Smolnikov, A. P. Gerashchenko, N. V. Selezneva, N. V. Baranov","doi":"10.1134/s0031918x23602469","DOIUrl":"https://doi.org/10.1134/s0031918x23602469","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The researches of the structural and magnetic properties of the layered chalcogenide Fe4Co3Se8, which has a ferrimagnetic order below T = 196 K, have been performed by means of X-ray diffraction, magnetic susceptibility measurements, and 59Co nuclear magnetic resonance (NMR) spectroscopy. It is found that the effective magnetic moment of iron ions is μeff ≈ 5.90(5) μB. The components of the magnetic shift and electric field gradient tensors at the Co nuclei sites have been determined. The hyperfine field induced on Co nuclei from neighboring iron ions has been estimated from the temperature dependences of the shift and susceptibility in Fe4Co3Se8. It was also established that cobalt ions in Fe4Co3Se8, as well as in the Co7Se8 compound, do not have intrinsic magnetic moment, but they do have a moment induced from neighboring iron ions (mu _{{{text{eff}}}}^{{{text{Co}}}}) ≈ 0.36(4) μB, which decreases at the magnetic ordering to 0.07(1)μB due to mutual compensation of contributions from neighboring iron ions.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"19 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140629339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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