Physics of Metals and Metallography最新文献_第9页

Micromagnetic Simulation of Ferromagnetic Resonance in a Nanosized Bilayer Exchange-Coupled Square-Shaped Ferromagnetic Film 纳米级双层交换耦合方形铁磁薄膜中铁磁共振的微磁模拟

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-04-21 DOI: 10.1134/s0031918x23602378

N. V. Shulga, R. A. Doroshenko

{"title":"Micromagnetic Simulation of Ferromagnetic Resonance in a Nanosized Bilayer Exchange-Coupled Square-Shaped Ferromagnetic Film","authors":"N. V. Shulga, R. A. Doroshenko","doi":"10.1134/s0031918x23602378","DOIUrl":"https://doi.org/10.1134/s0031918x23602378","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>A numerical method for computing ferromagnetic resonance (FMR) is adapted for a confined bilayer exchange-coupled film. In this method, the system is unbalanced from the equilibrium by a short weak external magnetic field, and then the OOMMF micromagnetic simulation package is used to simulate the system’s return to equilibrium and to record the resulting magnetization dynamics. After performing the Fourier transform of the time series of magnetization variation, the frequency dependences of the spectral density are calculated. The resonance frequencies are determined by correlating the maxima of these dependences with their corresponding frequencies. The study concerns the main modes and corresponding distributions of magnetization excitation in films of varying sizes when the constant magnetic field changes from saturating to zero. The FMR has been investigated, specifically, for the earlier studied vortex distribution of magnetization in the normal state. It is shown that the transition of the main mode to the low-frequency region occurs when the intensity of the external magnetic field decreases. This technique can be used to analyze the dynamic properties of multiferroic heterostructures in the future.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"241 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140624410","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}

引用次数: 0

Mechanical Properties of High Entropy Alloys Based on Rare Earth Elements with Yttrium and Scandium 基于稀土元素与钇和钪的高熵合金的机械特性

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-03-04 DOI: 10.1134/s0031918x23601919

I. S. Sipatov, O. A. Korolev, E. V. Ignatieva, L. A. Marshuk, B. R. Gelchinskiy, A. A. Rempel

{"title":"Mechanical Properties of High Entropy Alloys Based on Rare Earth Elements with Yttrium and Scandium","authors":"I. S. Sipatov, O. A. Korolev, E. V. Ignatieva, L. A. Marshuk, B. R. Gelchinskiy, A. A. Rempel","doi":"10.1134/s0031918x23601919","DOIUrl":"https://doi.org/10.1134/s0031918x23601919","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The paper reports the research outcomes on the structural and chemical composition of the equiatomic GdTbDyHoSc and GdTbDyHoY high-entropy alloys, which are potential materials for magnetic cold generators. The solidus and liquidus temperatures of the alloys were determined using differential scanning calorimetry. Based on these findings, an experimental mode of thermal cyclic treatment was selected. No signs of alloy destruction were observed after five test cycles for thermal resistance under exposure at a temperature of 1073 K (~0.6 of the melting point) for 15 minutes followed by quenching in room-temperature water. The applied heat treatment resulted in an increase in the hardness of alloys by 2–3 times and a decrease in wear resistance by 4–40 times depending on the alloy composition and the number of heat treatment cycles. Significant changes in the properties of alloys are associated with the formation of oxides, including REM2О3, not only on the surface but also within their volume, which is due to the high chemical activity of rare-earth metals. The data presented in this study will be beneficial in the development of thermal and thermomechanical treatment methods for studied alloys.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"267 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140033926","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}

引用次数: 0

Evaluation of the Possibility of Formation of a Controlled Structure by Changing the Technological Parameters of the LPBF Process 通过改变 LPBF 工艺的技术参数来评估形成受控结构的可能性

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-03-04 DOI: 10.1134/s0031918x23602470

I. V. Shakirov, A. V. Olisov, P. A. Kuznetsov, A. S. Zhukov

{"title":"Evaluation of the Possibility of Formation of a Controlled Structure by Changing the Technological Parameters of the LPBF Process","authors":"I. V. Shakirov, A. V. Olisov, P. A. Kuznetsov, A. S. Zhukov","doi":"10.1134/s0031918x23602470","DOIUrl":"https://doi.org/10.1134/s0031918x23602470","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The possibility is studied for a controlled structure to be created by varying parameters of the laser powder bed fusion (LPBF) process when using austenitic stainless steels as an example. On the basis of the results of studying the structure of experimental samples, the influence of a combination of various technological parameters included in the scanning strategy when preparing a 3D-model for the LPBF process on the structure formation processes is demonstrated. The possibility of formation of fragments with different structures within a single part in the course of its manufacture by the LPBF method via changing the processing parameters included in the scanning strategy is shown. It is noted that the use of 3D-models, identical in shape but different in the strategy used for laser beam scanning straight in the laser melting process, leads to the formation of a sample with a profoundly different structure, since microstructure formation strongly depends on metal crystallization conditions directly linked with the scanning strategy.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"18 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140034069","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}

引用次数: 0

Atomic Structure of Ti2NiCu Alloy after Severe Plastic Deformation by High Pressure Torsion and Heat Treatment 高压扭转和热处理产生严重塑性变形后 Ti2NiCu 合金的原子结构

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-03-04 DOI: 10.1134/s0031918x23602366

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

引用次数: 0

Dynamic Properties of Low-Alloyed Copper Alloys with Submicrocrystalline Structure Obtained by High Strain Rate Deformation 通过高应变率变形获得的亚微晶结构低合金铜合金的动态特性

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-03-04 DOI: 10.1134/s0031918x23602081

D. N. Abdullina, I. V. Khomskaya, S. V. Razorenov, E. V. Shorokhov

{"title":"Dynamic Properties of Low-Alloyed Copper Alloys with Submicrocrystalline Structure Obtained by High Strain Rate Deformation","authors":"D. N. Abdullina, I. V. Khomskaya, S. V. Razorenov, E. V. Shorokhov","doi":"10.1134/s0031918x23602081","DOIUrl":"https://doi.org/10.1134/s0031918x23602081","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract—</h3>The mechanical properties of alloys Cu–0.03 wt % Zr and Cu–0.10 wt % Cr with a submicrocrystalline structure formed after dynamic channel angular pressing and subsequent annealing. The properties of the alloys were studied under conditions of shock compression with a pressure of 4.7–7.0 GPa and a deformation rate of (1.3–3.2) × 105 s–1. It is shown that grain size refinement from 200–400 to 0.3–1.0 μm increases the dynamic elastic limit and the dynamic yield strength of the Cu–0.03% Zr alloy by factors of 1.9 and 1.8, respectively. At the same time, the spall strength is reduced by a factor of 1.4. Subsequent annealing at 400 and 450°C can increase the characteristics of the elastic–plastic transition by factors of 3.0 and 3.7, respectively. This elevates the spall strength to the level of a large crystal analogue. It is determined that the process of dispersing the Cu–0.10% Cr alloy structure to 1.0–5.0 μm leads to an increase in the spall strength by a factor of 1.5 with respect to this value in the coarse grained state, while the dynamic elastic limit and the dynamic yield strength are increased by factors of 3.7 and 2.6, respectively.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"70 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140034216","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}

引用次数: 0

Auger Electron Spectroscopy of Thin Cr2GeC Films Cr2GeC 薄膜的欧杰电子能谱学

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-02-05 DOI: 10.1134/s0031918x2360135x

T. A. Andryushchenko, S. A. Lyaschenko, S. N. Varnakov, A. V. Lukyanenko, I. V. Nemtsev, I. A. Yakovlev, D. V. Shevtsov, O. A. Maximova, S. G. Ovchinnikov

引用次数: 0

A-Site Order-Disorder Evolution in Double Manganites RBaMn2O6 (R = Pr, Nd) 双锰矿 RBaMn2O6（R = Pr、Nd）中的 A 位有序-无序演化

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-02-05 DOI: 10.1134/s0031918x23602421

{"title":"A-Site Order-Disorder Evolution in Double Manganites RBaMn2O6 (R = Pr, Nd)","authors":"","doi":"10.1134/s0031918x23602421","DOIUrl":"https://doi.org/10.1134/s0031918x23602421","url":null,"abstract":" <h3>Abstract</h3> Structural, magnetic and optical properties of double manganites PrBaMn2O6 and NdBaMn2O6 are studied depending on the degree of ordering in the A-position. It is shown that, annealing induced disordering goes in an initial stage throw formation of a two-phase state: a phase with a high A-site ordering with TC ∼ 280–300 K and a phase with a low ordering of ~30% with significantly lower TC coexist. In partially ordered PrBaMn2O6 samples there are metal-insulator transitions near TC of the each coexisting phases. In partially ordered NdBaMn2O6 in a highly A-site ordered high-temperature phase, there is no metal-insulator transition due to the destruction of the channels for metallic conductivity formed by the ordering of the x2‒y2 orbitals. If a metal-insulator transition takes place, the application of a magnetic field leads to the effect of magnetotransmission near TC, which is associated with a change in the concentration of delocalized charge carriers. ","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"11 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139688608","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}

引用次数: 0

Permalloy-Based 2D-Magnetoplasmonic Crystals: Synthesis and Magneto-Optical Properties 基于坡莫合金的二维磁光晶体：合成与磁光特性

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-02-05 DOI: 10.1134/s0031918x2360197x

Z. A. Grigoreva, D. V. Murzin, Ch. A. Gritsenko, A. G. Kozlov, A. V. Ognev, V. V. Rodionova, V. K. Belyaev

引用次数: 0

FeZrN Films with Nanocomposite Structure for Soft Magnetic Applications 用于软磁应用的具有纳米复合结构的 FeZrN 薄膜

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-02-05 DOI: 10.1134/s0031918x23601336

E. N. Sheftel, E. V. Harin, V. A. Tedzhetov, G. Sh. Usmanova

{"title":"FeZrN Films with Nanocomposite Structure for Soft Magnetic Applications","authors":"E. N. Sheftel, E. V. Harin, V. A. Tedzhetov, G. Sh. Usmanova","doi":"10.1134/s0031918x23601336","DOIUrl":"https://doi.org/10.1134/s0031918x23601336","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The Fe56.8–72.5Zr5.9–11.6N13.8–31.6O1.2–3.4 films were prepared by magnetron deposition. The metastable structural and phase state, which was formed upon deposition, is represented by either mixed (nanocrystalline αFe(Zr,N) + amorphous) or amorphous structure. During subsequent annealing (300–600°C), it slightly shifts toward the stable state due to partial crystallization of the amorphous phase and precipitation of the secondary phases (Fe4N, Fe3N, and ZrO2). The grain structure of the films (grains 3–12 nm in size) is characterized by thermal stability. The relatively low saturation magnetization Ms (870–1400 G) of the films is explained by the presence of the amorphous phase and αFe(Zr,N) solid solution, which remain in the film structure after annealing at all temperatures. The stochastic domain structure is formed in all films under study due to exchange interaction between grains and clusters in the amorphous structure. The strong dependence of the magnetic structure on the phase state and grain structure of the films is demonstrated. The combination of low local magnetic anisotropy and the highest stochastic domain size predetermines the lowest coercive field of the films, which varies in a range of 1 to 50 Oe.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"11 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139688610","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}

引用次数: 0

Playing Pure Spin Current in Helimagnets: Toward Chiral Spin-Orbitronics 玩转螺旋磁体中的纯自旋电流：迈向手性自旋轨道学

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-02-05 DOI: 10.1134/s0031918x23601968

V. V. Ustinov, I. A. Yasyulevich, N. G. Bebenin

引用次数: 0