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Low-stability structural-phase states of aqueous solutions at ultrahigh dilution
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2025-01-07 DOI: 10.1007/s11182-024-03307-w
A. I. Potekaev, V. V. Obukhov
{"title":"Low-stability structural-phase states of aqueous solutions at ultrahigh dilution","authors":"A. I. Potekaev,&nbsp;V. V. Obukhov","doi":"10.1007/s11182-024-03307-w","DOIUrl":"10.1007/s11182-024-03307-w","url":null,"abstract":"<div><p>A physical concept of thermodynamic physical system states has been proposed with application to aqueous solutions at ultrahigh dilution that are low stable to external impacts. Based on the thermodynamic analogy of the solution states and the condensed physical system state, the feasibility of realization of low-stability states is demonstrated. An analysis of representations about thermodynamic and structural-phase states of water and estimations of the structure of aqueous solutions at ultrahigh dilution allow us to assume reasonably the feasibility of realization of low-stability structurally-phase states of aqueous solutions at ultrahigh dilution when the system goes into a new structural state under an external impact (mechanical shaking). Moreover, the external impact can be sufficiently small, but the structural system state can change quite significantly. It is discussed how the state of a suitable symmetric liquid solution of a substance, for which the effect of small impact of the external force in different forms (for example, shaking) is important, can be obtained experimentally. This approach allows the role of Epstein’s effect in shaking of chemical solutions to be estimated by mechanochemical methods.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1743 - 1749"},"PeriodicalIF":0.4,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phase transformation during in situ heating of low-activation austenitic steel
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2025-01-07 DOI: 10.1007/s11182-024-03291-1
I. Yu. Litovchenko, S. A. Akkuzin, N. A. Polekhina, K. V. Spiridonova, M. A. Khimich, A. V. Kim, V. V. Osipova, V. M. Chernov
{"title":"Phase transformation during in situ heating of low-activation austenitic steel","authors":"I. Yu. Litovchenko,&nbsp;S. A. Akkuzin,&nbsp;N. A. Polekhina,&nbsp;K. V. Spiridonova,&nbsp;M. A. Khimich,&nbsp;A. V. Kim,&nbsp;V. V. Osipova,&nbsp;V. M. Chernov","doi":"10.1007/s11182-024-03291-1","DOIUrl":"10.1007/s11182-024-03291-1","url":null,"abstract":"<div><p>The peculiarities of phase transformations in dispersion-strengthened low-activation chromium-manganese austenitic steel under high-temperature heating and cooling are studied using <i>in situ</i> X‑ray diffraction (XRD) and transmission electron microscopy (TEM). The presence of ε‑martensite plates in this steel after ageing (700 °C, 100 h) is shown. This phase is formed under local internal stresses arising from intensive growth of dispersed particles of M<sub>23</sub>C<sub>6</sub> carbides (M – Cr, Mn, Fe) during the steel cooling from the aging to room temperature. The comparatively low stacking fault energy (25 mJ/m<sup>2</sup>) of steel and the low stresses of ε‑martensite formation favor the γ→ε transformation. The <i>in situ</i> studies show that under subsequent high-temperature heating up to 500–590 °C, the ε‑phase completely transforms into austenite. During cooling from 590 °C to room temperature, this phase appears again. The formation of ε‑martensite does not affect the structural-phase stability of austenite near the temperature range of anticipated operating conditions.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1627 - 1633"},"PeriodicalIF":0.4,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic strength of low-alloy steel samples saturated with hydrogen under different conditions
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2025-01-07 DOI: 10.1007/s11182-024-03288-w
A. V. Nechaeva, V. V. Shalagaev, A. S. Zavorin, V. A. Polyanskiy, Yu. S. Sedova, Yu. A. Yakovlev
{"title":"Dynamic strength of low-alloy steel samples saturated with hydrogen under different conditions","authors":"A. V. Nechaeva,&nbsp;V. V. Shalagaev,&nbsp;A. S. Zavorin,&nbsp;V. A. Polyanskiy,&nbsp;Yu. S. Sedova,&nbsp;Yu. A. Yakovlev","doi":"10.1007/s11182-024-03288-w","DOIUrl":"10.1007/s11182-024-03288-w","url":null,"abstract":"<div><p>The effect of artificial hydrogen saturation and saturation during operation in a hydrogen-containing environment on the dynamic strength of steels at various temperatures, relatively low hydrogen concentration, and various times of sample exposure to air after saturation are studied. Fundamentally different impact strength values associated with different mechanisms of operational and laboratory hydrogen interaction with metal have been obtained.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1603 - 1609"},"PeriodicalIF":0.4,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reverse-polarity plasma cutting of rolled Ti-5Al-5V-5Mo titanium alloy thick plates
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2025-01-06 DOI: 10.1007/s11182-024-03282-2
A. V. Grinenko, A. V. Chumaevskii, A. O. Panfilov, D. A. Gurianov, E. A. Sidorov, E. A. Kolubaev
{"title":"Reverse-polarity plasma cutting of rolled Ti-5Al-5V-5Mo titanium alloy thick plates","authors":"A. V. Grinenko,&nbsp;A. V. Chumaevskii,&nbsp;A. O. Panfilov,&nbsp;D. A. Gurianov,&nbsp;E. A. Sidorov,&nbsp;E. A. Kolubaev","doi":"10.1007/s11182-024-03282-2","DOIUrl":"10.1007/s11182-024-03282-2","url":null,"abstract":"<div><p>The paper presents research results of reverse-polarity plasma cutting of thick Ti-5Al-5V-5Mo titanium alloy plates. It is shown that 300 A current is the best for plasma cutting of 20 and 40 mm thick plates, and for 70-mm thick plates, the best is the current of 350 A. The surface layer includes the molten metal, oxide layers, and heat-affected zone. Traces of molten titanium are observed on the sample surface after its displacement from the work area by the water-air mixed flow. The use of the water mist generation system improves the quality of the work area, but does not reduce the material oxidation during cutting.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1562 - 1568"},"PeriodicalIF":0.4,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical study of therapeutic shockwave treatment on a thoracic spine segment
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2025-01-06 DOI: 10.1007/s11182-024-03301-2
G. M. Eremina, A. Yu. Smolin
{"title":"Numerical study of therapeutic shockwave treatment on a thoracic spine segment","authors":"G. M. Eremina,&nbsp;A. Yu. Smolin","doi":"10.1007/s11182-024-03301-2","DOIUrl":"10.1007/s11182-024-03301-2","url":null,"abstract":"<div><p>Malignant tumors arising from mesenchymal tissues (bones or cartilages) have the worst prognosis. Currently, the development of minimally invasive and non-invasive methods for treating patients in the early stages, used separately and in combination with existing treatment methods, is relevant. In this work, we study numerically the mechanical behavior of the thoracic spine affected by osteosarcoma under shock wave treatment using an invasive applicator placement technique. The results obtained indicate that the optimal range for initiating the deactivation process with minimal risks of bone tissue destruction is the shock wave loading with energy flux density (EFD) in the range from 0.005 to 0.15 mJ/mm<sup>2</sup>. By further increasing in the amplitude of the therapeutic shock wave treatment (with invasive installation of the applicator), the formation and expressive growth of stroma around the tumor is possible.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1699 - 1705"},"PeriodicalIF":0.4,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prediction of high-level cloud parameters based on polarization lidar observations using machine learning tools
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2025-01-06 DOI: 10.1007/s11182-024-03310-1
M. Penzin, O. Kuchinskaia, I. Akimov, D. Romanov, I. Bryukhanov, I. Samokhvalov
{"title":"Prediction of high-level cloud parameters based on polarization lidar observations using machine learning tools","authors":"M. Penzin,&nbsp;O. Kuchinskaia,&nbsp;I. Akimov,&nbsp;D. Romanov,&nbsp;I. Bryukhanov,&nbsp;I. Samokhvalov","doi":"10.1007/s11182-024-03310-1","DOIUrl":"10.1007/s11182-024-03310-1","url":null,"abstract":"<div><p>The paper focuses on machine learning methods in atmospheric laser remote sensing. Atmospheric lidar data have been stored since 2009, when high-altitude matrix polarization lidar measurements became systematic. Light detection and ranging (lidar) data are used to determine optical (backscattering phase matrix (BSPM), thickness, and scattering ratio) and geometrical (altitude of lower and upper boundary, vertical extent) parameters of higher-level clouds. The data storage is then added by meteorological parameters derived from radiosonde observations and ERA5 reanalysis data (temperature, relative and specific humidity, wind speed and direction). Methodology includes machine learning models, random forest, and modified version incorporating principal component analysis for dimensionality reduction to probe the complex relationship between meteorological parameters and specific BSPM elements. For the first time, different lidar measurement techniques identify two distinct maxima in the distribution of BSPM elements.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1766 - 1772"},"PeriodicalIF":0.4,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Failure mechanism in an epoxy adhesive layer under compression + shear testing at −50 °C
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2025-01-06 DOI: 10.1007/s11182-024-03300-3
S. V. Smirnov, I. A. Veretennikova, D. I. Vichuzhanin, A. V. Pestov, S. A. Rogovaya
{"title":"Failure mechanism in an epoxy adhesive layer under compression + shear testing at −50 °C","authors":"S. V. Smirnov,&nbsp;I. A. Veretennikova,&nbsp;D. I. Vichuzhanin,&nbsp;A. V. Pestov,&nbsp;S. A. Rogovaya","doi":"10.1007/s11182-024-03300-3","DOIUrl":"10.1007/s11182-024-03300-3","url":null,"abstract":"<div><p>The paper presents the results of studying the fracture of an epoxy layer in modified Brazil-nut-sandwich specimens. The effect of the angle α between the compression direction and the plane of the epoxy-metal interface on the fracture pattern is studied. The specimens with three adhesive compositions synthesized on the basis of the ED-20 epoxy resin are tested. It has been found that the cohesive failure mechanism dominates only at the angle α = 0° for all the epoxy compositions. The failure mechanism changes to the mixed adhesive-cohesive one as the angle α increased.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1692 - 1698"},"PeriodicalIF":0.4,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Annealing effect on structure, phase composition and mechanical properties of high-nitrogen austenitic steel
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2025-01-06 DOI: 10.1007/s11182-024-03292-0
A. V. Kim, N. A. Polekhina, I. Yu. Litovchenko, S. A. Akkuzin
{"title":"Annealing effect on structure, phase composition and mechanical properties of high-nitrogen austenitic steel","authors":"A. V. Kim,&nbsp;N. A. Polekhina,&nbsp;I. Yu. Litovchenko,&nbsp;S. A. Akkuzin","doi":"10.1007/s11182-024-03292-0","DOIUrl":"10.1007/s11182-024-03292-0","url":null,"abstract":"<div><p>The paper presents transmission and scanning electron microscopy investigations of the microstructure, dispersed particle precipitation and mechanical properties of the high-nitrogen austenitic steel VNS-53-Sh after 700 °C annealing for 10 h. It is shown that dispersed particles of Cr<sub>2</sub>N chromium nitrides and M<sub>23</sub>C<sub>6</sub> carbides precipitate after annealing. The volume fraction of each particle type does not exceed 1%. Nitrides precipitate near the grain boundaries via discontinuous precipitation of austenite with the cell formation. Carbides precipitate at the grain boundaries and incoherent twin boundaries coherently with the austenite matrix. The dislocation density decreases by about an order of magnitude relative to the quenched state. Yield and tensile strength decrease respectively by ≈1.2 and ≈1.1 times relative to the initial state. Elongation to fracture increases by 1.6 times. It is found that the dislocation substructure recovery and precipitation of dispersed particles affect strength and plastic properties of the VNS-53-Sh.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1634 - 1640"},"PeriodicalIF":0.4,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of vibrational iterations of magnetized water on the physico-chemical properties of intact water
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2025-01-06 DOI: 10.1007/s11182-024-03304-z
V. V. Novikov
{"title":"Effect of vibrational iterations of magnetized water on the physico-chemical properties of intact water","authors":"V. V. Novikov","doi":"10.1007/s11182-024-03304-z","DOIUrl":"10.1007/s11182-024-03304-z","url":null,"abstract":"<div><p>It has already been shown that it is possible to obtain vibrational iterations (artificial material objects) through multiple vibration processing (crossing) of any substance (see Petrova A. et al. (2024)). In this work, using the same crossing technology, vibrational iterations were obtained from water exposed to various magnetic fields. They, like vibrational iterations from high- and low-molecular weight substances, were classified into groups (fractions) according to their physical and chemical properties.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1718 - 1727"},"PeriodicalIF":0.4,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to: Structure and properties of antiferromagnetic dirac semi-metal EuZnSb2
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2025-01-06 DOI: 10.1007/s11182-024-03315-w
Xiang Shi, Huxin Yin, Xucai Kan, Xiansong Liu, Yuyan Han
{"title":"Correction to: Structure and properties of antiferromagnetic dirac semi-metal EuZnSb2","authors":"Xiang Shi,&nbsp;Huxin Yin,&nbsp;Xucai Kan,&nbsp;Xiansong Liu,&nbsp;Yuyan Han","doi":"10.1007/s11182-024-03315-w","DOIUrl":"10.1007/s11182-024-03315-w","url":null,"abstract":"","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1800 - 1802"},"PeriodicalIF":0.4,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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