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Influence of focused ultrasonic waves on temperature inhomogeneities of air
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2024-11-20 DOI: 10.1007/s11182-024-03305-y
D. Ya. Sukhanov, A. E. Kuzovova, S. N. Roslyakov, F. S. Emelyanov
{"title":"Influence of focused ultrasonic waves on temperature inhomogeneities of air","authors":"D. Ya. Sukhanov,&nbsp;A. E. Kuzovova,&nbsp;S. N. Roslyakov,&nbsp;F. S. Emelyanov","doi":"10.1007/s11182-024-03305-y","DOIUrl":"10.1007/s11182-024-03305-y","url":null,"abstract":"<div><p>The results of a study of the influence of standing ultrasonic waves in air, formed by two counter-directed focused arrays of emitters, on temperature inhomogeneities of air are presented. A numerical modeling of the heat and mass transfer is performed using the Navier-Stokes equations for an air environment with temperature inhomogeneities under the influence of ultrasonic waves. The experimental results for ultrasonic waves at a frequency of 41 kHz are presented. It is shown that the region of increased temperature is displaced from the focusing region of the ultrasonic field, and the region of low temperature is drawn into this region. The results can be used in the development of ultrasonic cooling systems.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1728 - 1734"},"PeriodicalIF":0.4,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109073","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
Influence of high-energy ball-milling duration on Nb-Al powder mixture microhardness
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2024-11-19 DOI: 10.1007/s11182-024-03287-x
D. A. Osipov, A. D. Ishkov, I. V. Smirnov, K. V. Grinyaev, I. A. Ditenberg
{"title":"Influence of high-energy ball-milling duration on Nb-Al powder mixture microhardness","authors":"D. A. Osipov,&nbsp;A. D. Ishkov,&nbsp;I. V. Smirnov,&nbsp;K. V. Grinyaev,&nbsp;I. A. Ditenberg","doi":"10.1007/s11182-024-03287-x","DOIUrl":"10.1007/s11182-024-03287-x","url":null,"abstract":"<div><p>The influence of high-energy ball milling duration on the microhardness values of the precursors from the Nb–Al powder mixture is studied. The main stages of microhardness increase, characterized by the specificity of its values change relative to the HEBM duration, are identified. As the microhardness values increase, an increase in the spread of its values is observed, which indicates the heterogeneity of the structural-phase state. Structural investigation methods have established that after 3.5 min HEBM an ordered AlNb<sub>2</sub> compound is formed, the volume fraction of which is about 4%. It is assumed that the presence of particles of a strong ordered phase makes the main contribution to the strengthening of the powder mixture precursor.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1599 - 1602"},"PeriodicalIF":0.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108868","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
Application of unloading slot to assess the stress state in the massif around wells
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2024-11-19 DOI: 10.1007/s11182-024-03306-x
A. I. Chanyshev, I. M. Abdulin, L. V. Gorodilov
{"title":"Application of unloading slot to assess the stress state in the massif around wells","authors":"A. I. Chanyshev,&nbsp;I. M. Abdulin,&nbsp;L. V. Gorodilov","doi":"10.1007/s11182-024-03306-x","DOIUrl":"10.1007/s11182-024-03306-x","url":null,"abstract":"<div><p>The problem of determining the displacements of the contour of a mine working with an arbitrary cross-section, after their completion on the site by the moment of its creation, is considered. To solve the problem, the method of slotted unloading is used. A contour similar to that of the investigated working with a subsequent unloading is drawn on the exposed surface of the rock massif. The displacements are measured both at the resulting core boundary and at the contour of the created hole, imitating the mine working contour. It is shown that these displacements differ not only in direction but also in magnitude. In order to determine the total displacements at the mine working boundary, it is necessary to sum them up. Then they are used both to estimate the stress-strain state of the rock massif around the mine working and the external loads applied to the rock massif as a whole. A solution in the elastic case for a circular cylindrical mine working is proposed, with the displacements of the arbitrary type defined on its contour.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1735 - 1742"},"PeriodicalIF":0.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108872","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
Influence of cellular dendritic structure and grain orientation on deformation behavior of additively manufactured AlSi10Mg alloy
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2024-11-19 DOI: 10.1007/s11182-024-03296-w
V. Romanova, A. Borodina, E. Dymnich, V. Balokhonov, R. Balokhonov
{"title":"Influence of cellular dendritic structure and grain orientation on deformation behavior of additively manufactured AlSi10Mg alloy","authors":"V. Romanova,&nbsp;A. Borodina,&nbsp;E. Dymnich,&nbsp;V. Balokhonov,&nbsp;R. Balokhonov","doi":"10.1007/s11182-024-03296-w","DOIUrl":"10.1007/s11182-024-03296-w","url":null,"abstract":"<div><p>The paper investigates the combined effect from the dendritic structure and grain orientation on the deformation behavior of the additively manufactured AlSi10Mg alloy. Micromechanical models comprising Al cells separated by a Si-rich eutectic network are constructed using the experimental data. The constitutive behavior of the Al phase is described in terms of the crystal plasticity to consider its crystallographic orientation. Intragranular stress and strain partitioning between Al and Si phases is analyzed numerically. The cellular dendritic structure is shown to be responsible for the anisotropy of mechanical properties of as-built Al-Si alloys.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1668 - 1676"},"PeriodicalIF":0.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108873","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 rolling on the structure and mechanical properties of the Zn-0.8Li alloy
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2024-11-19 DOI: 10.1007/s11182-024-03278-y
A. R. Khasanova, A. R. Sirazeeva, D. A. Aksenov, B. O. Bolshakov, R. N. Asfandiyarov, O. B. Kulyasova
{"title":"Effect of rolling on the structure and mechanical properties of the Zn-0.8Li alloy","authors":"A. R. Khasanova,&nbsp;A. R. Sirazeeva,&nbsp;D. A. Aksenov,&nbsp;B. O. Bolshakov,&nbsp;R. N. Asfandiyarov,&nbsp;O. B. Kulyasova","doi":"10.1007/s11182-024-03278-y","DOIUrl":"10.1007/s11182-024-03278-y","url":null,"abstract":"<div><p>The effect of hot rolling on the structure and mechanical properties of a Zn‑0.8Li zinc alloy is studied. It is found out that as a result of hot rolling, the alloy dendritic structure is transformed into a granular structure in eutectic regions with an average grain size of 4.6 μm, and the primary β‑LiZn<sub>4</sub> phase acquires the boundaries of the regions elongated in the rolling direction with the dimensions of 100 μm in the cross section and 300–500 μm in the longitudinal section. It is shown that the formation of the grain structure by rolling leads to a significant increase in the yield strength, tensile strength, and the development of plasticity.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1531 - 1537"},"PeriodicalIF":0.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108849","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
Nucleate nanoferrofluid boiling on small heating surface in magnetic field
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2024-11-19 DOI: 10.1007/s11182-024-03314-x
A. Ya. Simonovskii, A. R. Zakinyan
{"title":"Nucleate nanoferrofluid boiling on small heating surface in magnetic field","authors":"A. Ya. Simonovskii,&nbsp;A. R. Zakinyan","doi":"10.1007/s11182-024-03314-x","DOIUrl":"10.1007/s11182-024-03314-x","url":null,"abstract":"<div><p>Quite recently, considerable attention has been paid to boiling processes of nanoferrofluids in the magnetic field, in particular the influence of the magnetic field on boiling modes. The paper presents the experimental study of the stationary magnetic field effect on the nanoferrofluid boiling on a small heating surface, where only the nucleate boiling occurs. It is shown that at the low and medium field intensity, the heat-transfer coefficient increases, but further increase in the field intensity reduces this parameter. The hysteresis was found on the boiling curve under the influence of the external magnetic field.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1795 - 1799"},"PeriodicalIF":0.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108870","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
Influence of corrosion and tribocorrosion on damageability and cyclic durability of materials
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2024-11-19 DOI: 10.1007/s11182-024-03298-8
P. O. Rusinov, G. V. Kurapov, A. A. Rusinova, M. D. Semadeni, P. V. Sereda
{"title":"Influence of corrosion and tribocorrosion on damageability and cyclic durability of materials","authors":"P. O. Rusinov,&nbsp;G. V. Kurapov,&nbsp;A. A. Rusinova,&nbsp;M. D. Semadeni,&nbsp;P. V. Sereda","doi":"10.1007/s11182-024-03298-8","DOIUrl":"10.1007/s11182-024-03298-8","url":null,"abstract":"<div><p>The paper deals with corrosion and tribocorrosion testing of the AA7075 + NiCrCoHfNbAlWCTiBZrC composite. The chemical analysis of condensate on fuselage of a Boeing, shows its ionic and salt composition, which allows to reproduce artificial condensate. Corrosion damage of aircraft structures caused by artificial condensate is similar to that caused by natural condensate. Cyclic fatigue testing of aircraft materials is conducted in different corrosive media. The statistical analysis is conducted for the corrosion rate affecting the low-cycle fatigue durability. Aviation materials are subjected to corrosion destruction caused by artificial condensate and corrosive media (3% NaCl, NaCl + H<sub>2</sub>O<sub>2</sub>, K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub> + HCl solutions). After the statistical analysis of the results, empirical equations are suggested for the cyclic fatigue durability and corrosion rate. An empirical equation is suggested for the crack growth depending on the stress intensity factor. The corrosion destruction of aviation materials demonstrates that each jump in the crack propagation captures a significant part of the grain boundary not involved in the interaction with the corrosive medium.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1677 - 1684"},"PeriodicalIF":0.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108869","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
Influence of the topological laws of scattering in the Rayleigh limit on resonance and diffuse statistical scattering of the Rayleigh wave
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2024-11-19 DOI: 10.1007/s11182-024-03313-y
V. N. Chukov
{"title":"Influence of the topological laws of scattering in the Rayleigh limit on resonance and diffuse statistical scattering of the Rayleigh wave","authors":"V. N. Chukov","doi":"10.1007/s11182-024-03313-y","DOIUrl":"10.1007/s11182-024-03313-y","url":null,"abstract":"<div><p>It is established that the new topological laws of statistical Rayleigh wave scattering in the Rayleigh limit strongly influence the resonance and diffuse scattering frequency and angular spectra. This is caused by the strong meta-Rayleigh modulation of scattering by the correlation function form of statistical inhomogeneity in a wide frequency range from the Rayleigh to diffuse limits. These new physical phenomena violate and expand the fundamental concept of the Rayleigh scattering.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1787 - 1794"},"PeriodicalIF":0.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108871","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
Mechanical properties and microstructure of Ti–6.5Al–2Zr–1Mo–1V/TiB composites produced by vacuum arc or selective laser melting
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2024-11-19 DOI: 10.1007/s11182-024-03295-x
M. S. Ozerov, V. S. Sokolovsky, D. G. Shaysultanov, I. A. Astakhov, S. V. Zherebtsov
{"title":"Mechanical properties and microstructure of Ti–6.5Al–2Zr–1Mo–1V/TiB composites produced by vacuum arc or selective laser melting","authors":"M. S. Ozerov,&nbsp;V. S. Sokolovsky,&nbsp;D. G. Shaysultanov,&nbsp;I. A. Astakhov,&nbsp;S. V. Zherebtsov","doi":"10.1007/s11182-024-03295-x","DOIUrl":"10.1007/s11182-024-03295-x","url":null,"abstract":"<div><p>Ti–6.5Al–2Zr–1Mo–1V/TiB metal-matrix composites were produced by vacuum arc or selective laser melting (SLM) methods using 0.7 and 2 wt.% TiB<sub>2</sub> in the charge mixture. The initial microstructure of the as-cast and SLM composites consisted of TiB fibers randomly distributed within the two-phase α/β matrix. The average apparent length and cross-sectional size of the TiB fibers in the as-cast composite with 0.7 wt.% TiB<sub>2</sub> and as-cast composite with 2 wt.% TiB<sub>2</sub> were ~10 and ~11 μm and ~ 1.0 and ~ 1.2 μm, respectively. The average apparent length and cross-sectional size of the TiB fibers in the SLM composite with 0.7 wt.% TiB<sub>2</sub> and the SLM composite with 2 wt.% TiB<sub>2</sub> were ~3.5 and ~4.0 μm and ~0.2 and ~0.25 μm, respectively. The addition of the TiB fibers resulted in 20–27% increase in the strength without visible decrease in the ductility. An unreinforced alloy produced by the SLM showed 60% increase in strength compared to that obtained by the vacuum arc melting. The addition of the TiB fibers resulted in ~30% increase in the strength (for both composites) with a decrease in the ductility to 8 and 3% for the SLM composite with 0.7 wt.% TiB<sub>2</sub> and the SLM composite with 2 wt.% TiB<sub>2</sub>, respectively.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1654 - 1660"},"PeriodicalIF":0.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108875","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
Two-level statistical constitutive model with integrated ETMB model: description of grain structure refinement of AISI 304 steel in cold bending
IF 0.4 4区 物理与天体物理
Russian Physics Journal Pub Date : 2024-11-19 DOI: 10.1007/s11182-024-03281-3
K. A. Romanov, A. I. Shveykin
{"title":"Two-level statistical constitutive model with integrated ETMB model: description of grain structure refinement of AISI 304 steel in cold bending","authors":"K. A. Romanov,&nbsp;A. I. Shveykin","doi":"10.1007/s11182-024-03281-3","DOIUrl":"10.1007/s11182-024-03281-3","url":null,"abstract":"<div><p>An application of the earlier developed two-level statistical constitutive model with an integrated ETMB model to describe the grain structure refinement of AISI 304 steel during cold bending is considered. The analyzed technological process is modeled using the Abaqus finite element package. The advanced modeling is used to reasonably select one process mode that would provide a smaller average grain size.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 10","pages":"1555 - 1561"},"PeriodicalIF":0.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108797","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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