Physical Mesomechanics最新文献

Electrospark Deposition of Ti-Ta Coatings on Ti6Al4V Titanium Alloy: Oxidation Resistance and Wear Properties 电火花沉积 Ti6Al4V 钛合金上的 Ti-Ta 涂层：抗氧化性和磨损性能

IF 1.8 4区材料科学

Physical Mesomechanics Pub Date : 2024-10-24 DOI: 10.1134/S1029959924050096

A. A. Burkov, S. V. Nikolenko, V. O. Krutikova, N. A. Shelmenok

{"title":"Electrospark Deposition of Ti-Ta Coatings on Ti6Al4V Titanium Alloy: Oxidation Resistance and Wear Properties","authors":"A. A. Burkov, S. V. Nikolenko, V. O. Krutikova, N. A. Shelmenok","doi":"10.1134/S1029959924050096","DOIUrl":"10.1134/S1029959924050096","url":null,"abstract":"Ti-Ta coatings were deposited on titanium alloy by electrospark deposition in the anode mixture of titanium granules and tantalum powder in an argon atmosphere. The cathode weight gain kinetics, tantalum concentration, structure, oxidation resistance, microhardness, and tribotechnical properties of the coatings were studied. It was shown that, with increasing tantalum concentration in the anode mixture, the net cathode gain during 10 min of treatment increased monotonically. The average thickness of the deposited coatings varied in the range from 30.9 to 39.1 µm. The concentration of tantalum in the coating composition increased with increasing tantalum powder concentration in the anode mixture. The coating structure was dense without longitudinal and transverse cracks. With an excess of tantalum powder in the anode mixture, the discharge energy was not enough to completely melt it. The phase composition included α-Ti and a bcc tantalum solid solution in β-Ti. With increasing powder concentration in the anode mixture, the intensity of the bcc-phase peaks increased relative to the α-Ti peaks. The surface hydrophobicity of Ti-Ta coatings was higher than that of uncoated Ti6Al4V titanium alloy. The developed method can be used to produce Ti-Ta coatings with up to 5.9 times higher oxidation resistance compared to Ti6Al4V alloy. The high oxidation resistance of Ti-Ta coatings is explained by the formation of a dense and durable TiO2 layer. The surface microhardness of Ti-Ta coatings ranged from 4.72 to 4.91 GPa. The friction coefficient was in the range of 0.87–0.97. The wear resistance was 23 to 36 times higher as compared to the titanium alloy.","PeriodicalId":726,"journal":{"name":"Physical Mesomechanics","volume":"27 5","pages":"618 - 626"},"PeriodicalIF":1.8,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519094","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

Absorption of Impact and Shear Energy by Crystal Lattices of Mechanically Activated Inorganic Substances: A Review 机械活化无机物晶格对冲击能和剪切能的吸收：综述

IF 1.8 4区材料科学

Physical Mesomechanics Pub Date : 2024-10-24 DOI: 10.1134/S1029959924050084

I. A. Massalimov, B. I. Massalimov, A. U. Shayakhmetov, M. R. Samsonov, F. Kh. Urakaev

引用次数: 0

Digital Image Correlation Analysis of Fatigue Degradation of Layered Polymer Composites (Polyetheretherketone/Polyetherimide, PEEK/PEI) with Carbon-Fiber Fabric Prepreg 带有碳纤维织物预浸料的层状聚合物复合材料（聚醚醚酮/聚醚酰亚胺，PEEK/PEI）疲劳降解的数字图像相关性分析

IF 1.8 4区材料科学

Physical Mesomechanics Pub Date : 2024-10-24 DOI: 10.1134/S1029959924050047

S. V. Panin, A. A. Bogdanov, V. O. Aleksenko, S. A. Bochkareva, P. S. Lyubutin, I. L. Panov, D. Tian

{"title":"Digital Image Correlation Analysis of Fatigue Degradation of Layered Polymer Composites (Polyetheretherketone/Polyetherimide, PEEK/PEI) with Carbon-Fiber Fabric Prepreg","authors":"S. V. Panin, A. A. Bogdanov, V. O. Aleksenko, S. A. Bochkareva, P. S. Lyubutin, I. L. Panov, D. Tian","doi":"10.1134/S1029959924050047","DOIUrl":"10.1134/S1029959924050047","url":null,"abstract":"In this work, the relationship was considered between the structure and cyclic loading resistance of a layered composite consisting of PEI (PEEK) plate/PEI (PEEK) film/PEI-impregnated carbon-fiber fabric prepreg/PEI (PEEK) film/PEI (PEEK) plate by analyzing the time variation in the parameters of mechanical hysteresis loops calculated using digital image correlation. It was shown that the polyetherimide-based layered composite has low fatigue life under cyclic loading (0.8 of the yield strength), resulting from incompatible deformation between the PEI plates and the prepreg due to a layer interface formed by low-melting TecaPEI film. In the PEEK layered composite, the layer interface was formed by neat PEEK energy director and therefore had a little amount of defects, due to which the load was well transferred from the PEEK plates to the middle reinforcement layer. As a result, the fatigue life at a load level of 0.8 of the yield strength corresponded to high-cycle fatigue (more than 86000 cycles).","PeriodicalId":726,"journal":{"name":"Physical Mesomechanics","volume":"27 5","pages":"541 - 555"},"PeriodicalIF":1.8,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1029959924050047.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surface Structure Formation in Plasma Cutting of Aluminum and Titanium Alloys Using Direct Current Straight and Reverse Polarity 使用直流直向和反向极性等离子切割铝和钛合金时的表面结构形成

IF 1.8 4区材料科学

Physical Mesomechanics Pub Date : 2024-10-24 DOI: 10.1134/S1029959924050023

E. A. Sidorov, A. V. Grinenko, A. V. Chumaevskii, V. E. Rubtsov, A. V. Nikolaeva, A. O. Panfilov, E. O. Knyazhev, A. M. Cheremnov, V. R. Utyaganova, K. S. Osipovich, D. A. Gurianov, E. A. Kolubaev

{"title":"Surface Structure Formation in Plasma Cutting of Aluminum and Titanium Alloys Using Direct Current Straight and Reverse Polarity","authors":"E. A. Sidorov, A. V. Grinenko, A. V. Chumaevskii, V. E. Rubtsov, A. V. Nikolaeva, A. O. Panfilov, E. O. Knyazhev, A. M. Cheremnov, V. R. Utyaganova, K. S. Osipovich, D. A. Gurianov, E. A. Kolubaev","doi":"10.1134/S1029959924050023","DOIUrl":"10.1134/S1029959924050023","url":null,"abstract":"The structural features and phase composition are examined in near-surface layers of specimens of Al-Mg, Al-Cu-Mg alloys and commercially pure titanium obtained by plasma cutting using direct current straight polarity (DCSP) and direct current reverse polarity (DCRP). It is found that the flows of molten metal ejected by the gas stream from the cut cavity during cutting form the fusion and heat-affected zones, whose structural morphology, phase composition, and thickness depend on both the selected material and the cutting mode. The fusion zone is thicker in specimens cut using DCRP than in those cut with DCSP. The thickness of the adjacent heat-affected zone is also the largest in the mode that provides a thicker fused layer. Aluminum alloy specimens cut in ambient air are characterized by the presence of oxygen in the near-surface layers. The lowest degree of oxidation is observed in Al-Mg alloy. Oxygen penetrates into the fused layer to a depth of 350–500 μm in Al-Cu-Mg and up to 200–250 μm in Al-Mg alloy. In titanium alloy, the thickness of oxide layers does not exceed 100–150 μm during straight polarity cutting and 200–250 μm during reverse polarity cutting. A thin brittle layer of TiO and TiO2 oxides is formed on the titanium alloy surface. It is shown that the generation of “water mist” around the plasma jet when cutting materials of all types with DCRP leads to a more intensive oxidation of metal, less thermal effect on the material, and reduced roughness of the cut face.","PeriodicalId":726,"journal":{"name":"Physical Mesomechanics","volume":"27 5","pages":"518 - 528"},"PeriodicalIF":1.8,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1029959924050023.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructural Deformation and Fracture of Reduced Activation Ferritic-Martensitic Steel EK-181 under Different Heat Treatment Conditions 不同热处理条件下还原活化铁素体-马氏体钢 EK-181 的微结构变形和断裂

IF 1.8 4区材料科学

Physical Mesomechanics Pub Date : 2024-10-24 DOI: 10.1134/S1029959924050035

N. A. Polekhina, I. Yu. Litovchenko, S. A. Akkuzin, K. V. Spiridonova, V. V. Osipova, V. M. Chernov, M. V. Leontyeva-Smirnova

{"title":"Microstructural Deformation and Fracture of Reduced Activation Ferritic-Martensitic Steel EK-181 under Different Heat Treatment Conditions","authors":"N. A. Polekhina, I. Yu. Litovchenko, S. A. Akkuzin, K. V. Spiridonova, V. V. Osipova, V. M. Chernov, M. V. Leontyeva-Smirnova","doi":"10.1134/S1029959924050035","DOIUrl":"10.1134/S1029959924050035","url":null,"abstract":"TEM studies were performed to examine the effect of holding of dispersion-strengthened heat-resistant reduced activation 12% chromium ferritic-martensitic steel EK-181 in static liquid lead for 3000 h at 600°C on the steel microstructure in comparison with the steel after conventional heat treatment by quenching and tempering at 720°C. It was found that the steel microstructure has good thermal stability under the specified experimental conditions. Microstructural deformation of EK-181 steel was studied in the neck region of tensile specimens tested at the temperatures 20, 680, 700, and 720°C with and without holding in liquid lead, and their fracture mechanisms were investigated. As a result of plastic deformation during tensile testing at room temperature, martensite plates and laths near the fracture surface are distorted and fragmented with the formation of new low-angle boundaries, and the dislocation density increases. At the deformation temperatures 680–720°C, nearly equiaxed ferrite grains are formed, the density and size of second-phase particles (M23C6 and MX) increases due to dynamic strain aging, and the dislocation density decreases locally. As the test temperature rises, the degree of martensite tempering increases. At T ≥ 700°C, some dynamic polygonization and dynamic recrystallization are observed. At elevated tension temperatures, ferrite coarsening is more significant in the specimens held in lead as compared to the conventionally treated material. The plastic deformation and fracture behavior of the steel are largely determined by the test temperature, rather than by the treatment mode.","PeriodicalId":726,"journal":{"name":"Physical Mesomechanics","volume":"27 5","pages":"529 - 540"},"PeriodicalIF":1.8,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1029959924050035.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of Porous Composites Based on Electroexplosive Ti/Al Nanopowder for Bone Implants 基于用于骨植入物的电爆钛/铝纳米粉体的多孔复合材料的合成

IF 1.8 4区材料科学

Physical Mesomechanics Pub Date : 2024-10-24 DOI: 10.1134/S1029959924050059

O. V. Bakina, N. V. Svarovskaya, V. R. Chzhou, E. A. Glazkova, A. S. Lozhkomoev, L. Yu. Ivanova, L. V. Spirina, M. I. Lerner

{"title":"Synthesis of Porous Composites Based on Electroexplosive Ti/Al Nanopowder for Bone Implants","authors":"O. V. Bakina, N. V. Svarovskaya, V. R. Chzhou, E. A. Glazkova, A. S. Lozhkomoev, L. Yu. Ivanova, L. V. Spirina, M. I. Lerner","doi":"10.1134/S1029959924050059","DOIUrl":"10.1134/S1029959924050059","url":null,"abstract":"Bone tissue engineers are paying close attention to titanium and titanium oxide for use in orthopedic implants due to their good mechanical properties, corrosion resistance, and low toxicity. A drawback of these materials is that there is an insufficient fit between the elastic moduli of titanium compounds and cortical bone, which leads to early bone degradation and implant failure as a result of improper load distribution. Here we report for the first time on TiO2/Al2O3 composites with 20–50% porosity synthesized using bicomponent Ti/Al nanoparticles with an average size of 98 nm. The developed double sintering procedure allows the formation of transport pores through which the porogen and binder can be uniformly removed, and the use of Ti/Al nanoparticles allows the production of specimens with an optimal elastic modulus for cortical bone replacement (2.33 GPa) and low toxicity in in vitro experiments (more than 90% 3T3 cell viability, no more than 3.85% cell apoptosis). The concentration of ions released into the SBF solution depends on the specific surface area of the specimens, but in all cases it is significantly lower than the maximum permissible values. The obtained specimens have great potential for use as biomaterials for the manufacture of scaffolds and screws.","PeriodicalId":726,"journal":{"name":"Physical Mesomechanics","volume":"27 5","pages":"556 - 565"},"PeriodicalIF":1.8,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518799","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 Effective Mechanical Properties of a Particle-Reinforced Polymer Composite with Low-Modulus Inclusions 评估带有低模量夹杂物的颗粒增强聚合物复合材料的有效力学性能

IF 1.8 4区材料科学

Physical Mesomechanics Pub Date : 2024-10-24 DOI: 10.1134/S1029959924050072

M. P. Danilaev, S. A. Karandashov, V. A. Kuklin, I. N. Sidorov, A. I. Enskaya

{"title":"Evaluation of the Effective Mechanical Properties of a Particle-Reinforced Polymer Composite with Low-Modulus Inclusions","authors":"M. P. Danilaev, S. A. Karandashov, V. A. Kuklin, I. N. Sidorov, A. I. Enskaya","doi":"10.1134/S1029959924050072","DOIUrl":"10.1134/S1029959924050072","url":null,"abstract":"Adequate mathematical models of the mechanical properties of particle-reinforced polymer composites (PRPCs) require verification, which is difficult to do for at least the following reasons: lack of information on the mechanical characteristics of the transition layer formed at the modified particle–polymer interface, and lack of information about the mechanical characteristics of agglomerates that inevitably form during PRPC fabrication. This paper proposes a mathematical model for calculating the effective mechanical properties (bulk modulus, shear modulus, Young’s modulus, and Poisson’s ratio) of PRPCs with encapsulated filler particles. The model is verified on PRPC specimens with inclusions in the form of air bubbles. Simplified equations are derived for calculating the effective mechanical properties of PRPCs with low-modulus inclusions in the form of air bubbles. It is shown that the proposed model provides reliable estimates of the bulk modulus, shear modulus, Young’s modulus, and Poisson’s ratio of PRPCs at a small relative volume of submicron-sized filler particles in the matrix.","PeriodicalId":726,"journal":{"name":"Physical Mesomechanics","volume":"27 5","pages":"578 - 591"},"PeriodicalIF":1.8,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518697","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

Multiscale Modeling and Computer-Aided Design of Advanced Materials with Hierarchical Structure 具有层次结构的先进材料的多尺度建模和计算机辅助设计

IF 1.8 4区材料科学

Physical Mesomechanics Pub Date : 2024-10-24 DOI: 10.1134/S1029959924050011

E. V. Shilko, A. I. Dmitriev, R. R. Balokhonov, V. A. Romanova

引用次数: 0

Influence of the Reinforcement Phase Composition on the Structure and Abrasive Wear Resistance of Aluminum Matrix Composites Reinforced with B4C and SiC 增强相组成对 B4C 和 SiC 增强铝基复合材料结构和耐磨性的影响

IF 1.8 4区材料科学

Physical Mesomechanics Pub Date : 2024-10-24 DOI: 10.1134/S1029959924050060

S. V. Gladkovsky, S. V. Petrova, R. A. Savrai, T. S. Cherkasova

{"title":"Influence of the Reinforcement Phase Composition on the Structure and Abrasive Wear Resistance of Aluminum Matrix Composites Reinforced with B4C and SiC","authors":"S. V. Gladkovsky, S. V. Petrova, R. A. Savrai, T. S. Cherkasova","doi":"10.1134/S1029959924050060","DOIUrl":"10.1134/S1029959924050060","url":null,"abstract":"Aluminum matrix composites reinforced with ceramic particles are widely used in parts and components operating under severe abrasive friction and wear conditions. This work investigates the effect of the particle size and the amount of B4C and SiC reinforcements ranging from 0 to 25 wt % in the initial powder mixture on the microstructure, micromechanical properties, and abrasive wear resistance of aluminum matrix composites. It is shown that B4C and SiC reinforcement particles contribute to the refinement of the aluminum matrix. Micromechanical properties determined by instrumented microindentation indicate that the hardness of the composites exceeds the hardness of sintered aluminum, and Al–25% SiC composite has the highest mechanical load resistance compared to other composites studied. Pin-on-plate wear tests of samples sliding against fixed electrocorundum grains revealed the greatest abrasive wear resistance of Al–25% SiC and Al–12.5% В4С–12.5% SiC composites. The minimum resistance was observed for Al–25% B4C. These materials demonstrate adhesive and abrasive wear behavior with the formation of characteristic wear grooves and tear pits.","PeriodicalId":726,"journal":{"name":"Physical Mesomechanics","volume":"27 5","pages":"566 - 577"},"PeriodicalIF":1.8,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518800","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

Two-Level Constitutive Model of Metal with a Comprehensive Account of Temperature and Strain Rate Changes 全面考虑温度和应变率变化的两级金属构造模型

IF 1.8 4区材料科学

Physical Mesomechanics Pub Date : 2024-08-23 DOI: 10.1134/S1029959924040027

A. I. Shveykin, A. A. Vshivkova, P. V. Trusov

{"title":"Two-Level Constitutive Model of Metal with a Comprehensive Account of Temperature and Strain Rate Changes","authors":"A. I. Shveykin, A. A. Vshivkova, P. V. Trusov","doi":"10.1134/S1029959924040027","DOIUrl":"10.1134/S1029959924040027","url":null,"abstract":"An important goal of industrial development is to improve the forming and thermomechanical processing technologies, both in order to get the best characteristics of finished products and to reduce energy costs and material consumption. The key step in solving such problems is the correct formulation of a material constitutive model. The temperature and strain rate attained in particular metal forming processes can vary significantly and have a strong influence on the structural evolution of the material and, consequently, on the resulting physical and mechanical properties. However, there are almost no processes in which the temperature and strain rate are constant and equal at all points of the processed product. In this regard, it is relevant to build constitutive models that correctly account for the influence of changing temperature and strain rate on the material response. Based on our previous review, we propose here a modified two-level statistical model that correctly accounts for the temperature and strain rate effects on intragranular dislocation slip and the associated material response. The model parameters are determined for an fcc polycrystal of Al 2024-T351 alloy using literature data on the compression behavior of this alloy at different temperatures and strain rates. A detailed description is given for an algorithm developed to identify the model parameters using data from constant temperature and constant strain rate experiments. The proposed model showed adequate results for loading conditions with changing temperature and strain rate.","PeriodicalId":726,"journal":{"name":"Physical Mesomechanics","volume":"27 4","pages":"370 - 386"},"PeriodicalIF":1.8,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142175822","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