Protection of Metals and Physical Chemistry of Surfaces最新文献_第10页

Electrochemical Coating of PANI/Nanometal Oxide Composites on 304 L Stainless Steel Surface and Investigation of Corrosion Behavior 304 L 不锈钢表面的 PANI/纳米氧化物复合材料电化学涂层及腐蚀行为研究

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2024-10-25 DOI: 10.1134/S2070205124701594

Sibel Zor, Buket Bozkurt Koçlar

{"title":"Electrochemical Coating of PANI/Nanometal Oxide Composites on 304 L Stainless Steel Surface and Investigation of Corrosion Behavior","authors":"Sibel Zor,  Buket Bozkurt Koçlar","doi":"10.1134/S2070205124701594","DOIUrl":"10.1134/S2070205124701594","url":null,"abstract":"In this study, cyclic voltammetry method was used in 0.5 M oxalic acid and 0.2 M aniline solutions with and without different amounts (0.1, 0.3, 0.5 g) of NiO, WO3, Sb2O3, inorganic nano metal oxide. PANI and PANI/nanometal oxide coating was applied to the 304 L steel electrode surface. The corrosion behavior of coated 304 L steel in 2.0 M NaCl solution was investigated using Tafel polarization and impedance spectroscopy methods. The structure characterizations of the polymeric composites coated on the 304 L steel surface were determined by scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), and their thermal behaviors were determined by differential scanning calorimetry DSC analyses. The time dependence of the coating was examined by SEM images by keeping the coated steel plates in NaCl solution for 7 days. Accordingly, it has been determined that PANI/nanometal oxide (NiO, WO3, Sb2O3) is more effective than pure PANI in preventing the corrosion of 304 L steel, which is preferred in the industry. As the amount of nano metal oxide used in PANI/nanometal oxide composites increased, the corrosion inhibition effectiveness of the metal increased. This increase was maximum (92–98%) in composites containing 0.5 g nanometal oxide.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 2","pages":"190 - 203"},"PeriodicalIF":1.1,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518817","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

Effects of Different Forging Ratios on Microstructure, Mechanical Properties and Friction and Wear Behavior of Q355D Steel 不同锻造比对 Q355D 钢微观结构、机械性能以及摩擦和磨损行为的影响

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2024-10-25 DOI: 10.1134/S2070205124701612

Jian Huang, Jin Xu, Xuefeng Wu, Chengsong Wang, Chen Jin, Xiang Ji, Tian Han

{"title":"Effects of Different Forging Ratios on Microstructure, Mechanical Properties and Friction and Wear Behavior of Q355D Steel","authors":"Jian Huang, Jin Xu, Xuefeng Wu, Chengsong Wang, Chen Jin, Xiang Ji, Tian Han","doi":"10.1134/S2070205124701612","DOIUrl":"10.1134/S2070205124701612","url":null,"abstract":"In order to meet the mechanical performance demands of large oil cylinder barrels and piston rods, an investigation into the forging process of Q355D low-alloy high-strength steel was conducted. This study rigorously examined the impact of various forging ratios (2.6, 4.3, and 6.2) on both the microstructural characteristics and mechanical properties (including tensile strength, hardness, elongation, and impact toughness) of Q355D steel through a comprehensive systematic analysis. The findings revealed that an escalation in the forging ratio resulted in a refinement of the grain size in both ferrite and pearlite, concurrently with the fragmentation of MnS inclusions. The augmentation in both hardness and impact toughness correlated proportionally with the increased forging ratio, primarily attributed to the grain size refinement and augmented dislocation density. The yield strength exhibited a corresponding increase with the forging ratio increments: 303.56, 324.32, and 346.69 MPa, while hardness values were recorded as 174.32, 187.31, and 200.95 HV, respectively. Furthermore, grain refinement significantly contributed to enhancing the steel’s ductility and toughness. Additionally, the escalated forging ratio notably reduced the duration required for the steel to reach a stabilized friction coefficient and reduced the stabilized friction coefficient, consequently amplifying the steel’s resistance to frictional wear.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 2","pages":"270 - 281"},"PeriodicalIF":1.1,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518834","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

Comprehensive Review on Role of Surface Modification Techniques to Prevent Failure of IC Engine Parts 全面回顾表面改性技术在防止集成电路发动机部件失效方面的作用

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2024-10-25 DOI: 10.1134/S2070205124701600

Santosh Kumar

引用次数: 0

Kinetic Modeling of Ultrafast Boriding of AISI 1045 Steel and Phase Homogenization AISI 1045 钢超高速硼化和相均化的动力学建模

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2024-10-25 DOI: 10.1134/S2070205124701624

Brahim Boumaali, Mourad Keddam

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Complexes of Polyaniline with Sulfonated Polysulfone. Their Structure and Sensory Properties 聚苯胺与磺化聚砜的络合物。它们的结构和感官特性

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2024-10-25 DOI: 10.1134/S2070205124701715

V. A. Kabanova, O. L. Gribkova, S. I. Pozin, V. A. Tverskoy, A. A. Nekrasov

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Spectral Ellipsometry of Metal–Oxide Nanocomposites in Planar Nonvolatile Memory Technologies 平面非易失性存储器技术中的金属氧化物纳米复合材料光谱椭偏仪

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2024-10-25 DOI: 10.1134/S2070205124701703

V. A. Kotenev

引用次数: 0

Chloride Ion Effect on 316L SS Reinforcement in Fresh and Hardened Concrete: Electrochemical and Microscopic Analysis 氯离子对新拌混凝土和硬化混凝土中 316L SS 钢筋的影响：电化学和显微分析

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2024-10-25 DOI: 10.1134/S2070205124701685

Bouzeghaia Nora, Benarioua Mokhtar, Oulmi Kafia, Naoun Mahieddine, Abdou Imene

引用次数: 0

Studying the Adsorption Properties of Mesoporous Silica Gels Doped with Terbium, Dysprosium, Lanthanum and Modified with Nickel Using the Reverse Gas Chromatography Method 利用反向气相色谱法研究掺杂铽、镝、镧和镍改性的介孔二氧化硅凝胶的吸附特性

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2024-06-20 DOI: 10.1134/S2070205124701442

A. A. Tokranov, E. O. Tokranova, R. V. Shafigulin, A. V. Bulanova

{"title":"Studying the Adsorption Properties of Mesoporous Silica Gels Doped with Terbium, Dysprosium, Lanthanum and Modified with Nickel Using the Reverse Gas Chromatography Method","authors":"A. A. Tokranov, E. O. Tokranova, R. V. Shafigulin, A. V. Bulanova","doi":"10.1134/S2070205124701442","DOIUrl":"10.1134/S2070205124701442","url":null,"abstract":"The adsorption properties of mesoporous silica gel synthesized by the template method, doped with terbium, dysprosium, lanthanum and modified with nickel (Tb-Ni/MS, Dy-Ni/MS, La-Ni/MS) were studied using gas chromatography. The textural characteristics of the obtained materials were studied by low-temperature nitrogen adsorption-desorption method, atomic emission spectroscopy (ICP), X-ray phase analysis (XPA), X-ray structural analysis (XRD), and scanning electron microscopy (SEM). Thermodynamic characteristics of adsorption (differential heats and entropies) of test organic compounds were obtained using the inverse gas chromatography method. It has been established that the nature of the dopant leads to changes in the heats of adsorption for compounds prone to various types of specific interactions. It has been shown that mesoporous silica gels doped with dysprosium, terbium and modified with nickel enhance dispersion interactions of linear hydrocarbons with the sorbent surface; the heat of adsorption of compounds prone to specific interactions is higher on mesoporous silica gel doped with lanthanum and modified with nickel.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 1","pages":"41 - 49"},"PeriodicalIF":1.1,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141520685","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

Quantum Chemical Modeling of Optical and Physicochemical Properties of Amphiphilic Spiropyranes 两亲性 Spiropyranes 的光学和物理化学特性的量子化学建模

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2024-06-20 DOI: 10.1134/S2070205124701521

Yu. M. Selivantev, A. N. Morozov, N. L. Zaichenko, A. V. Lyubimov, O. A. Raitman

{"title":"Quantum Chemical Modeling of Optical and Physicochemical Properties of Amphiphilic Spiropyranes","authors":"Yu. M. Selivantev, A. N. Morozov, N. L. Zaichenko, A. V. Lyubimov, O. A. Raitman","doi":"10.1134/S2070205124701521","DOIUrl":"10.1134/S2070205124701521","url":null,"abstract":"The time-dependent density functional theory (TD-DFT) method was used for the first time to calculate electronic transitions of amphiphilic spiro compounds. It is shown that it gives a fundamentally correct electron density distribution, corresponding to the results obtained using the CASSCF method, and allows one to predict the nature of the electronic transition of the merocyanine form. For negative photochromes, the possibility of the existence of conical intersections of the potential energy surfaces of the ground and excited electronic states has been discovered, which may be the reason for the slow photochromism of these compounds. The fundamental possibility of using TD-DFT to predict the optical characteristics of long-chain spiropyrans is demonstrated, provided that scaling regressions are used. For the first time, linear regressions have been developed for such compounds, taking into account a set of physical parameters of the solvent in explicit form. This made it possible to obtain a unified empirical correction that takes into account the solvatochromic effect. The results obtained can be used as a basis for developing a main concept that takes into account the effect of the solvent on the spectral properties of spiro compounds and for constructing a unified regression model covering various types of solvato- and photochromism.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 1","pages":"110 - 123"},"PeriodicalIF":1.1,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502940","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

Nanostructured Diamond Particles in the Development of Protective Anticorrosion Epoxy Coatings 纳米结构金刚石颗粒在环氧树脂防腐保护涂层开发中的应用

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2024-06-20 DOI: 10.1134/S207020512470148X

Yu. A. Kondratenko, N. K. Golubeva, A. G. Ivanova, V. Yu. Dolmatov, V. L. Ugolkov, O. A. Zagrebelny, V. A. Alekseev, Chi Văn Nguyễn, T. A. Kochina

{"title":"Nanostructured Diamond Particles in the Development of Protective Anticorrosion Epoxy Coatings","authors":"Yu. A. Kondratenko, N. K. Golubeva, A. G. Ivanova, V. Yu. Dolmatov, V. L. Ugolkov, O. A. Zagrebelny, V. A. Alekseev, Chi Văn Nguyễn, T. A. Kochina","doi":"10.1134/S207020512470148X","DOIUrl":"10.1134/S207020512470148X","url":null,"abstract":"In this work, nanostructured diamond particles are considered as fillers for epoxy coatings. Nanodiamonds and a diamond charge obtained as a result of detonation synthesis from a mixture of TNT and hexogen are characterized by IR spectroscopy, scanning electron microscopy, and thermal analysis. It has been shown that nanodiamonds are characterized by thermal stability up to 450°C and increase the thermal stability of epoxy coatings. The influence of nanodiamonds and diamond charge, depending on their quantity and synthesis conditions, on the physical and mechanical properties (hardness, contact angle, adhesion, impact and bending strength) of epoxy coatings is studied. The results of a study of the anticorrosion resistance of epoxy coatings with 10 wt % nanodiamonds compared to polymethylphenylsiloxane resin coating using methods of potentiodynamic polarization, linear polarization resistance, and impedance measurements, supplemented by field tests in humid tropical climates are presented.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 1","pages":"75 - 85"},"PeriodicalIF":1.1,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502942","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