Physics of Metals and Metallography最新文献_第2页

Phase-Structural State of τ-MnAl(Ga) Alloys Prepared at Different Cooling Rates 以不同冷却速率制备的τ-锰铝(镓)合金的相结构状态

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-08-09 DOI: 10.1134/s0031918x24600374

A. S. Fortuna, N. M. Vazhinskii, K. S. Nechaev, T. A. Morozova, M. V. Gorshenkov, D. Yu. Karpenkov, E. S. Malyutina

{"title":"Phase-Structural State of τ-MnAl(Ga) Alloys Prepared at Different Cooling Rates","authors":"A. S. Fortuna, N. M. Vazhinskii, K. S. Nechaev, T. A. Morozova, M. V. Gorshenkov, D. Yu. Karpenkov, E. S. Malyutina","doi":"10.1134/s0031918x24600374","DOIUrl":"https://doi.org/10.1134/s0031918x24600374","url":null,"abstract":"An alloy with a nominal composition of Mn55Al36Ga9 is prepared by four different methods which ensure different cooling rates. Two bulk samples are prepared by induction melting followed by water quenching from a homogenizing temperature of 1100ºС; one of the samples was sealed in a quartz ampoule and subjected to water quenching, whereas the other sample directly was subjected to water quenching. Two samples are prepared in the form of ribbons by quenching from the melt on a rotating copper wheel at linear speeds of 10 and 40 m/s. Thus, samples quenched at different rates are prepared. For these samples, regularities of phase transitions occurred during heating are determined, and difference in the regularities for the bulk and rapidly quenched samples are found. Based on the data obtained, we make an assumption that the γ2 → τ phase transition has features of a bulk transition. Magnetic hysteretic properties of the rapidly quenched ribbons are measured. The high thermal stability of the rapidly quenched ribbons alloyed with gallium is shown.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"73 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141949082","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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Structural–Phase Transformations and Crystallographic Texture in Commercial Ti–6Al–4V Alloy with Globular Morphology of α-Phase Grains: The Rolling Plane 具有球状α相晶粒形态的商用 Ti-6Al-4V 合金的结构-相变和结晶纹理：轧制平面

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-08-09 DOI: 10.1134/s0031918x24600271

V. G. Pushin, D. Yu. Rasposienko, Yu. N. Gornostyrev, N. N. Kuranova, V. V. Makarov, E. B. Marchenkova, A. E. Svirid, O. B. Naimark, A. N. Balakhnin, V. A. Oborin

{"title":"Structural–Phase Transformations and Crystallographic Texture in Commercial Ti–6Al–4V Alloy with Globular Morphology of α-Phase Grains: The Rolling Plane","authors":"V. G. Pushin, D. Yu. Rasposienko, Yu. N. Gornostyrev, N. N. Kuranova, V. V. Makarov, E. B. Marchenkova, A. E. Svirid, O. B. Naimark, A. N. Balakhnin, V. A. Oborin","doi":"10.1134/s0031918x24600271","DOIUrl":"https://doi.org/10.1134/s0031918x24600271","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The commercial Ti–6Al–4V alloy was obtained in an almost single-phase state, formed by finely dispersed globular α-grains with an average size of 12 μm, using thermomechanical processing, including hot rolling. The microtexture and structure of the alloy were studied using X-ray diffractometry and transmission and scanning electron microscopy, including orientation microscopy. It is found that for α-grains the Burgers orientation relationships are satisfied, and twin orientations are ensured in the rolling plane. A significant scattering of the crystallographic orientations of α-grains relative to each other (up to 10°–15°) is established for each group of close Burgers orientations as a result of plastic deformation by rolling at high temperatures. Clusters of microtexture regions in the layered microstructure of grains and the formation mechanisms and mutual crystallographic misorientations of microtexture regions and grains in the alloy have been identified.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141949076","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

Electrophysical Properties of Stainless Chromium–Nickel Steel at High Pressures and Temperatures at Stepwise Shock Compression 不锈铬镍钢在高压和高温下逐步冲击压缩时的电物理特性

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-08-09 DOI: 10.1134/s0031918x24600313

A. M. Molodets, A. A. Golyshev

引用次数: 0

Hydrogen Interaction with 316L Steel Obtained by Selective Laser Melting 选择性激光熔化法获得的 316L 钢与氢的相互作用

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-07-17 DOI: 10.1134/s0031918x23603232

I. E. Boytsov, A. V. Buchirin, I. P. Maksimkin, I. L. Malkov, R. K. Musyaev, E. V. Shevnin, A. A. Yukhimchuk, A. V. Yalysheva, S. V. Shotin, A. V. Piskunov, A. V. Semenycheva, M. Yu. Gryaznov, V. N. Chuvildeev

{"title":"Hydrogen Interaction with 316L Steel Obtained by Selective Laser Melting","authors":"I. E. Boytsov, A. V. Buchirin, I. P. Maksimkin, I. L. Malkov, R. K. Musyaev, E. V. Shevnin, A. A. Yukhimchuk, A. V. Yalysheva, S. V. Shotin, A. V. Piskunov, A. V. Semenycheva, M. Yu. Gryaznov, V. N. Chuvildeev","doi":"10.1134/s0031918x23603232","DOIUrl":"https://doi.org/10.1134/s0031918x23603232","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">\u0000Abstract\u0000</h3>The investigation is focused on the impact of hydrogen on the physical and mechanical properties of 316L austenitic stainless steel (67.5Fe, 17.7Cr, 10.6Ni, 2.6Mo, 1.2Mn, 0.4Si in wt %) processed by selective laser melting (SLM). The study also determined the kinetic parameters of hydrogen interaction with 316L‑SLM steel at temperatures ranging from 300 to 700°C. It has been demonstrated that the plasticity characteristics are highly sensitive to the impact of hydrogen within the temperature range from 20 to 600°C. At 600°C, the maximum degree of hydrogen embrittlement is ≈30%. However, the elongation to failure and reduction of area remain at a sufficiently high level. Reduction in strength characteristics is only observed at 600°C and does not exceed 10%. Prolonged thermal impact and resulting structural changes do not affect the kinetic parameters of hydrogen interaction with 316L-SLM. The hydrogen solubility in SLM-processed 316L steel and 12Cr18Ni10T steel produced by conventional technology is nearly identical.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"73 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720491","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

Multisublattice Magnetic Structures in Charge Ordered Perovskite Manganites with High Doping Level 高掺杂电荷有序包晶锰酸盐中的多子晶格磁结构

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-07-17 DOI: 10.1134/s0031918x2360313x

L. E. Gonchar

引用次数: 0

The Temperature Dependence of Spin Pumping in Py/W and Py/Pt Bilayers Py/W和Py/Pt双层膜中自旋泵浦的温度依赖性

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-07-17 DOI: 10.1134/s0031918x24600593

A. S. Pakhomov, P. N. Skirdkov, V. V. Yurlov, A. I. Chernov, K. A. Zvezdin

引用次数: 0

Physical and Technological Features of Mechanoactivation of Powder Particles Formed during Hydro-Vacuum Dispersion of Metallic Melts 金属熔体水真空分散过程中形成的粉末颗粒机械活化的物理和技术特征

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-07-17 DOI: 10.1134/s0031918x23603190

G. V. Jandieri, D. V. Sakhvadze, B. G. Saralidze, G. D. Sakhvadze

{"title":"Physical and Technological Features of Mechanoactivation of Powder Particles Formed during Hydro-Vacuum Dispersion of Metallic Melts","authors":"G. V. Jandieri, D. V. Sakhvadze, B. G. Saralidze, G. D. Sakhvadze","doi":"10.1134/s0031918x23603190","DOIUrl":"https://doi.org/10.1134/s0031918x23603190","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">\u0000Abstract\u0000</h3>A study has been conducted on the hydro-vacuum dispersion process of metal melts using gray cast iron SCh20 (in Russian nomencluture; 3.3–3.5C, 1.4–2.4Si, 0.7–1Mn, <0.15S, <0.2P in wt %)—an analogue of GG20. It has been revealed that the main factor conditioning the mechanoactivation of formed particles is their solidification in a fibrous non-equilibrium structural-tensioned state. This state is achieved by flattening and asymmetric twistedness of droplets that are detached from the liquid metal in the disperser under volumetric impact of shock-pulsating waves of hydraulic discharge. The degree of particle activation was found to depend exponentially on their dispersion and specific surface area. These parameters determine the degree of asymmetry of shear deformations and the amount of accumulated energy. In turn, the size dispersion and specific surface are significantly influenced by physical and technological factors such as the specific flow rate and pressure of injected water, the thickness and the elevation angle of the hydro shell of the vacuum diffusion funnel, the diameter of the dispersed melt jet passed through it, and its superheating temperature. The control of these parameters makes it possible to smoothly adjust the key ratio “liquid metal: water” and set up the dispersion process with the highest possible degree of size dispersion and activation of the resulting powder.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"38 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720489","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

A Study of Rare Earth Intermetallic Compound La0.73Dy0.27Mn2Si2 by Raman Spectroscopy, Magnetic Force Microscopy, and Resonance Photoemission Spectroscopy 通过拉曼光谱、磁力显微镜和共振光发射光谱对稀土金属间化合物 La0.73Dy0.27Mn2Si2 的研究

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-07-17 DOI: 10.1134/s0031918x23603116

Yu. V. Korkh, E. A. Ponomareva, V. I. Grebennikov, E. G. Gerasimov, R. G. Chumakov, N. V. Mushnikov, T. V. Kuznetsova

{"title":"A Study of Rare Earth Intermetallic Compound La0.73Dy0.27Mn2Si2 by Raman Spectroscopy, Magnetic Force Microscopy, and Resonance Photoemission Spectroscopy","authors":"Yu. V. Korkh, E. A. Ponomareva, V. I. Grebennikov, E. G. Gerasimov, R. G. Chumakov, N. V. Mushnikov, T. V. Kuznetsova","doi":"10.1134/s0031918x23603116","DOIUrl":"https://doi.org/10.1134/s0031918x23603116","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">\u0000Abstract—</h3>The features of magnetic microstructure of La0.73Dy0.27Mn2Si2 at 293 K have been visualized by atomic force and magnetic force microscopy. Magnetic force images reveal the presence of low-contrast magnetic domains. The change of Raman spectral characteristics of light scattering in the process of cooling La0.73Dy0.27Mn2Si2 to a temperature of 263 K is experimentally detected. The electronic structure of La0.73Dy0.27Mn2Si2 is investigated by resonance photoemission spectroscopy with the use of the synchrotron radiation. Resonances at the 3d and 4d levels of electronic structure show different properties of valence electrons. Using the Dy 3d–4f (M4.5 absorption edge) resonance, the distribution of 4f states of dysprosium in the valence band is determined. Photoemission upon the giant Dy 4d–4f (N4.5 absorption edge) resonance is determined by the contribution of all states in the valence band due to the sudden involvement of the Coulomb interaction. The energies of the 5p and 4f levels of La, the 4f level of Dy, and the 3d level of Mn in the valence band are determined.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"12 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720496","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

Remagnetization Processes of Uniaxial Ferromagnetic Films with Spatially Modified Parameters 具有空间修正参数的单轴铁磁薄膜的再磁化过程

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-07-17 DOI: 10.1134/s0031918x23603219

R. M. Vakhitov, A. A. Akhmetova, M. A. Filippov, R. V. Solonetsky

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Influence of the Temperature of High Pressure Torsion Deformation on the Recrystallization Kinetics of Iron with a Submicrocrystalline Structure 高压扭转变形温度对亚微晶结构铁再结晶动力学的影响

IF 1.2 4区材料科学

Physics of Metals and Metallography Pub Date : 2024-07-17 DOI: 10.1134/s0031918x24600301

L. M. Voronova, M. V. Degtyarev, T. I. Chashchukhina

引用次数: 0