Protection of Metals and Physical Chemistry of Surfaces最新文献_第6页

Effect of B4Cp Volume Fraction on Microstructure and Properties of B4Cp/SiCp Hybrid Reinforced 2000 Series Aluminum Matrix Composites

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-02-18 DOI: 10.1134/S2070205124701946

Can Li, Xiaojing Xu, Xin Yan

{"title":"Effect of B4Cp Volume Fraction on Microstructure and Properties of B4Cp/SiCp Hybrid Reinforced 2000 Series Aluminum Matrix Composites","authors":"Can Li, Xiaojing Xu, Xin Yan","doi":"10.1134/S2070205124701946","DOIUrl":"10.1134/S2070205124701946","url":null,"abstract":"Micron boron carbide particle (B4Cp) and 2 vol % nano silicon carbide particle (SiCp) reinforced 2000 series aluminum matrix composites (AMCs) with different volume fractions of B4Cp (10, 15, and 20 vol %) were fabricated by powder metallurgy. In this study, the microstructure of B4Cp/SiCp reinforced 2000 series AMCs was analyzed using an optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). Additionally, X-ray diffraction (XRD) analysis was adopted to identify inter-metallic phases that were formed during the heat treatment. The hardness, electrical conductivity, and compressive properties of AMCs were systematically investigated. The results indicate that the reinforcements of 10 and 15 vol % B4Cp are uniformly distributed, while the reinforcements of 20 vol % B4Cp present agglomeration in the Al matrix. The hardness of B4Cp/SiCp reinforced 2000 series AMCs decreased after increasing, in which the composite with 15 vol % B4Cp possessed the maximum hardness of 331.9 ± 16.6 HV. In addition, the electrical conductivity of composites decreased with the increase of B4Cp content. The aluminum matrix composites containing 15 vol % B4Cp achieved the maximum compressive strength and fracture strain values of 788 MPa and 6.23%, respectively.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 4","pages":"696 - 707"},"PeriodicalIF":1.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438615","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

The Influence of Size and Surface Hydrophobicity of Latex Polymer Particles on the Physical and Mechanical Properties of Films

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-02-18 DOI: 10.1134/S2070205124702071

T. R. Aslamazova, V. A. Kotenev, N. Yu. Lomovskaya

{"title":"The Influence of Size and Surface Hydrophobicity of Latex Polymer Particles on the Physical and Mechanical Properties of Films","authors":"T. R. Aslamazova, V. A. Kotenev, N. Yu. Lomovskaya","doi":"10.1134/S2070205124702071","DOIUrl":"10.1134/S2070205124702071","url":null,"abstract":"The physicomechanical and physicochemical properties of film-forming styrene-alkyl(meth)acrylic latex copolymers were studied depending on the size of the latex particles and the hydrophobicity of their surface, which are a consequence of the features of emulsion polymerization. Using the method of dynamic mechanical relaxation spectroscopy, an increase in the intensity of relaxation mobility of latex polymer macrochains with a decrease in particle size and the hydrophobicity of their surface was established. This is accompanied by a decrease in the glass transition temperature of the polymer, corresponding to the maximum intensity of α-relaxation. A comparison of the properties of polymer films before and after their modification was carried out. water-soluble phthalocyaninate. When the polymer was modified, an increase was found in glass transition temperatures and the maximum intensity of α-relaxation as a result of disruptions in relaxation of the homogeneity of the polymer material when localizing the modifier on the surface of latex particles in the interparticle regions of the films. The localization of phthalocyaninate on the polymer surface is confirmed by fluorescence data spectroscopy, indicating the appearance of fluorescence in the modified polymer and its absence in the modifier itself.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 4","pages":"645 - 654"},"PeriodicalIF":1.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438616","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

The Study of Practical Adhesion of a Layer/Substrate System on an AISI 8620 Steel Exposed to Boriding and Borocarburizing

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-02-18 DOI: 10.1134/S2070205124702010

M. Olivares-Luna, I. Mejía-Caballero, U. Figueroa-López, I. A. Carmona-Cervantes, L. E. Castillo-Vela, I. Campos-Silva

{"title":"The Study of Practical Adhesion of a Layer/Substrate System on an AISI 8620 Steel Exposed to Boriding and Borocarburizing","authors":"M. Olivares-Luna, I. Mejía-Caballero, U. Figueroa-López, I. A. Carmona-Cervantes, L. E. Castillo-Vela, I. Campos-Silva","doi":"10.1134/S2070205124702010","DOIUrl":"10.1134/S2070205124702010","url":null,"abstract":"Novel results about the practical adhesion of the layer/substrate system on borided and borocarburized AISI 8620 steels exposed to a quenching-tempering post-treatment were evaluated. The hardness (H) and Young modulus (E) were obtained by instrumented Vickers microindentation. Consequently, the residual stresses (σr) and elastic strain to failure (H/E) were estimated. The microstructural characterization of the entire experimental set was carried out by scanning electron microscopy (SEM). Finally, the practical adhesion of the experimental set was evaluated with a scratch test, using a progressive load from 1 to 150 N at 10 mm min–1, with a scratch length of 7 mm. The results indicated that the quenching-tempering treatment increased the practical adhesion of the layer/substrate system, due to the dissolution of the outer FeB phase on the boride layer. Furthermore, the borocarburized material showed an increase around 2 times of the critical load during the practical adhesion test, attributed to a greater depth of the compressive residual stresses along the boride layer and the carburized zone. The borocarburizing + quenching-tempering treatment provided a mechanical support to the AISI 8620 steel, reducing the brittleness of the layer, in comparison with the borided and borided plus quenching-tempering material.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 4","pages":"758 - 763"},"PeriodicalIF":1.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438622","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

Synergistic Effect of Plant-Derived Compounds on Corrosion of cp-Ti in Artificial Oral Media: An Experimental and Theoretical DFT Approach

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-02-18 DOI: 10.1134/S2070205124702058

Turan Yanardağ

{"title":"Synergistic Effect of Plant-Derived Compounds on Corrosion of cp-Ti in Artificial Oral Media: An Experimental and Theoretical DFT Approach","authors":"Turan Yanardağ","doi":"10.1134/S2070205124702058","DOIUrl":"10.1134/S2070205124702058","url":null,"abstract":"This work studies corrosion behavior of the α-pinene (C10H16) and citric acid (1 × 10–3 M CA, H3C6H5O7·2H2O) compounds on commercial purity (cp-Ti) dental material investigated by electrochemical methods in artificial oral solutions (AOS, pH: 5.25, 37 ± 0.1°C) and density functional theory (DFT) study. The methods carried out by using open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), potential-current (Tafel) and linear polarization resistance (LPR) techniques in the AOS. In the previous study, α-pinene showed significant anti-corrosion capacity in CA medium by increasing the concentration of hydrogen ions. The aim of this research is to reveal the synergistic effect of the α-pinene and CA compounds on the material. Electrochemical results revealed that α-pinene played a role in the synergistic effect and acted as an excellent corrosion inhibitor. This effect shifted the pH of the solution from 5.20 to 5.60 on the basic side, also corrosion potential (Ecorr) shifted by 158 mV from –0.412 to –0.254 V towards the anode. Therefore, corrosion resistance (Rp) significantly increased from 50 to 254 kΩ cm2 (80%). Results indicated that TiO2 layer formation supported by α-pinene in this conditions. ICP-MS analysis also confirmed the formation of this layer. DFT study carried out by using different methods on the Gaussian 09W with 6-311G (d, p) basis set for α-pinene on cp-Ti. The studies showed that PBE method gave the higher maximum wavelength (λmax = 212.41 nm) than the other methods. The experimental results supported ICP-MS analysis by the DFT study.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 4","pages":"764 - 776"},"PeriodicalIF":1.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438623","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

Experimental and Theoretical Investigations of the Inhibition of the Corrosion of Mild Steel in HCl by Synthesized Piperazin Derivatives

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-02-18 DOI: 10.1134/S2070205124702034

Ponnusamy Singaravelu, Balu Anand, S Loganathan, Nnabuk Okon Eddy, Rajni Garg

{"title":"Experimental and Theoretical Investigations of the Inhibition of the Corrosion of Mild Steel in HCl by Synthesized Piperazin Derivatives","authors":"Ponnusamy Singaravelu, Balu Anand, S Loganathan, Nnabuk Okon Eddy, Rajni Garg","doi":"10.1134/S2070205124702034","DOIUrl":"10.1134/S2070205124702034","url":null,"abstract":"In this study, two organic molecules namely, [4-(4-aminobenzoyl)-piperazin-1-yl)] furan-2-yl) methanone (4-4-ABPFM) and 4-(4-aminophenylpiperazin-1-yl) furan-2-yl) methanone (4-4-APPFM) were synthesized and characterized using FTIR, UV–visible, thin layer chromatography, C-13 and proton NMR. The corrosion inhibition efficiencies of these molecules were tested using weight loss, polarization and AC impedance methods. Quantum chemical calculations (which included local selectivity, global reactivity and Monte Carlo simulation) were also implemented to complement the experimental data. The results obtained provided information confirmed that the synthesized compound has some inherent corrosion inhibition potentials due to the presence of aromatic rings, pi-electron systems, heteroatoms and corrosion structure parameters. The maximum inhibition efficiencies were 95 and 91% for 4,4-ABPFM and 4,4-APPFM respectively. The ideal fitness of the Langmuir isotherm with slope and R2 values approximating unity was also upheld. Theoretical calculation results showed strong accord to experimental values and supported higher efficiency for 4,4-ABPFM than 4,4-APPFM. Monte Carlo simulation showed that the adsorption energy is negative and also supported evidence drawn from the experiment, which is the spontaneous adsorption of the inhibitors on the metal surface.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 4","pages":"777 - 794"},"PeriodicalIF":1.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438626","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

The Preparation of Photoactive TiO2/NaX Zeolite Composites under Hydrothermal Conditions with the Use of Solutions with a High Concentration of Titanium Polyhydroxo Complexes

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-02-18 DOI: 10.1134/S2070205124702083

M. F. Butman, N. L. Ovchinnikov, N. M. Vinogradov, N. E. Gordina

{"title":"The Preparation of Photoactive TiO2/NaX Zeolite Composites under Hydrothermal Conditions with the Use of Solutions with a High Concentration of Titanium Polyhydroxo Complexes","authors":"M. F. Butman, N. L. Ovchinnikov, N. M. Vinogradov, N. E. Gordina","doi":"10.1134/S2070205124702083","DOIUrl":"10.1134/S2070205124702083","url":null,"abstract":"Composites of titanium dioxide and NaX zeolite containing 50, 70, and 80% TiO2 by weight relative to the zeolite in their composition are obtained using solutions with a high concentration of polyhydroxo complexes of titanium in a pressurized reactor. The materials are characterized by X-ray diffraction, IR spectroscopy, scanning electron microscopy, energy-dispersive microanalysis, and low-temperature adsorption–desorption of nitrogen. The adsorption and photocatalytic properties of the composites are studied by way of example of a model dye, Rhodamine B. The phase composition of the photoactive coating (the ratio of anatase and rutile); morphology of its surface; and textural, adsorption, and photocatalytic properties of the obtained composites to a significant extent depend on the degree of coverage of the surface of the zeolite. The properties of the microporous zeolite carrier after coating with titanium dioxide are transformed into the properties of a mesoporous material in the composite. The highest photocatalytic activity is found for the 80% TiO2/NaX composite (with a size of TiO2 crystallites of about 13 nm and an anatase/rutile ratio of phases of about 0.97). Complete discoloration of the dye (concentration of 10 mg/L, amount of the photocatalyst composite of 1 g/L) under UV irradiation (lamp power of 250 W) is observed over 90 min.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 4","pages":"636 - 644"},"PeriodicalIF":1.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438658","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 Rolling Deformation on the Microstructure and Properties of GNPs/2024Al Composite Materials

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-02-18 DOI: 10.1134/S207020512470206X

Jiayu Liu, Zhiwei Zhao, Fei Gao, Chuanzhi Liu, Xiaoyan Liu, Chenyu Li, Yuan Zhang

{"title":"Effects of Rolling Deformation on the Microstructure and Properties of GNPs/2024Al Composite Materials","authors":"Jiayu Liu,  Zhiwei Zhao, Fei Gao, Chuanzhi Liu, Xiaoyan Liu, Chenyu Li, Yuan Zhang","doi":"10.1134/S207020512470206X","DOIUrl":"10.1134/S207020512470206X","url":null,"abstract":"This study investigates the effects of rolling deformation on the microstructure and properties of graphene nanosheet-reinforced 2024 aluminum matrix composites (GNP/2024Al composites). The investigation involved several tests, including microhardness tests, intergranular corrosion performance tests, metallographic analysis, and electrochemical analysis. The results reveal that rolling deformation alters the microstructure of GNP/2024Al composites. Specifically, increasing rolling deformation leads to the distribution of grains along the rolling direction, the aspect ratio becomes larger, and the grain becomes slender. At 20% rolling deformation, the composite’s hardness improves, but at 40 and 55% deformation, the hardness decreases slightly. However, the overall range of hardness changes is small. As the deformation increases, the fibrous structure becomes more slender, leading to more grain boundaries per unit area. Additionally, the hot rolling process presses some microstructural defects that affect corrosion together, reducing such defects in the microstructure. The corrosion current density of the GNP/2024Al composites initially increases and then decreases with increasing rolling deformation, while the intergranular corrosion resistance decreases and then increases. Finally, the microscopic mechanism behind these observations is discussed.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 4","pages":"734 - 742"},"PeriodicalIF":1.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438617","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

The Effects of Electrolyte Composition on Formation and Properties of Micro-Arc Oxidation Layer of 6082-T6 Al Alloy

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-02-18 DOI: 10.1134/S2070205124702022

Q. Li, J. Shang

引用次数: 0

Structural and Optical Properties of Chemical Bath Deposited Ferric Thin Films: Impact of Growth Time

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-02-18 DOI: 10.1134/S2070205124701983

Haleh Kangarlou, Somayeh Asgary

引用次数: 0

Sorption of Nickel Ions on Iron(III) Hydroxide Freshly Precipitated from a Solution of Iron(II) Sulfate. Part 2. Structure and Composition of Iron(III) Hydroxide Precipitates 从硫酸铁溶液中新沉淀的氢氧化铁（III）对镍离子的吸附。第2部分。氢氧化铁（III）析出物的结构和组成

IF 1.1 4区材料科学

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2024-12-21 DOI: 10.1134/S2070205124701880

O. D. Linnikov, I. V. Rodina, G. S. Zakharova, I. V. Baklanova, Yu. V. Kuznetsova, A. P. Tyutyunnik, Z. A. Fattahova, L. Yu. Buldakova

{"title":"Sorption of Nickel Ions on Iron(III) Hydroxide Freshly Precipitated from a Solution of Iron(II) Sulfate. Part 2. Structure and Composition of Iron(III) Hydroxide Precipitates","authors":"O. D. Linnikov, I. V. Rodina, G. S. Zakharova, I. V. Baklanova, Yu. V. Kuznetsova, A. P. Tyutyunnik, Z. A. Fattahova, L. Yu. Buldakova","doi":"10.1134/S2070205124701880","DOIUrl":"10.1134/S2070205124701880","url":null,"abstract":"A comparative analysis of the composition and structure of freshly precipitated iron(III) hydroxide precipitates obtained from a solution of iron(II) sulfate in the presence of sodium sulfate (400 mg/L) at pH 7 and 8 before and after sorption of nickel ions on them was carried out. Using IR and Raman spectroscopy and X-ray phase and thermogravimetric analysis, it was shown that the precipitates have the gross formula Fe2O3⋅2H2O and contain small amounts of goethite (α-FeOOH) and lepidocrocite (γ-FeOOH). It has been established that the sorption of nickel ions on these precipitates is not accompanied by chemisorption, i.e., the formation of mixed compounds between iron and nickel. The ζ potential of precipitate particles at pH < 6 has a positive value, and at pH > 6 it becomes negative. The point of zero charge of precipitate particles corresponds to pH 6.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 3","pages":"373 - 380"},"PeriodicalIF":1.1,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870472","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