Materials Science最新文献_第8页

Corrosion Resistance of Eutectic Al–Mg–Ge Alloys 共晶铝-镁-锗合金的抗腐蚀性能

IF 0.9 4区材料科学

Materials Science Pub Date : 2023-12-27 DOI: 10.1007/s11003-023-00744-9

L. G. Shcherbakova, N. P. Korzhova, T. M. Legka, A. V. Sameluk, I. V. Voskoboinik, V. Kh. Melnyk

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Corrosion Resistance of Dysprosium Titanate Powders and Pellets in the Model Environment of the WWER-1000 Coolant 钛酸镝粉末和颗粒在 WWER-1000 冷却剂模型环境中的抗腐蚀性能

IF 0.9 4区材料科学

Materials Science Pub Date : 2023-12-27 DOI: 10.1007/s11003-023-00749-4

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Use of Corrosion Control Device to Control Reagent Water Treatment of Heating Networks 使用腐蚀控制装置控制供热管网的试剂水处理

IF 0.9 4区材料科学

Materials Science Pub Date : 2023-12-27 DOI: 10.1007/s11003-023-00745-8

G. S. Vasyliev, Yu. S. Herasymenko

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The Influence of the Deformation and Heat Treatment on the Structure and Heat-Resistance of Ti–Al–Zr–Si Alloys 变形和热处理对 Ti-Al-Zr-Si 合金结构和耐热性的影响

IF 0.9 4区材料科学

Materials Science Pub Date : 2023-12-27 DOI: 10.1007/s11003-023-00741-y

O. M. Shevchenko, L. D. Kulak, M. M. Kuzmenko, O. Yu. Koval, A. V. Kotko, I. F. Kravchenko, S. O. Firstov

{"title":"The Influence of the Deformation and Heat Treatment on the Structure and Heat-Resistance of Ti–Al–Zr–Si Alloys","authors":"O. M. Shevchenko, L. D. Kulak, M. M. Kuzmenko, O. Yu. Koval, A. V. Kotko, I. F. Kravchenko, S. O. Firstov","doi":"10.1007/s11003-023-00741-y","DOIUrl":"https://doi.org/10.1007/s11003-023-00741-y","url":null,"abstract":"The heat-resistant Ti–Al–Zr–Si alloys (base Ti–(6–7)Al–(2–3) Zr–(1–1.5)Si and additionally alloyed Ti–(6–7)Al–(3–5)Zr–(1–1.5)Si–(2–4)Sn), obtained by electron beam smelting were studied. Deformation was carried out in the β- or upper part of the (α+β)-area by means of forging and rolling into a strip. The base alloy was subjected to rolling in the upper part of the α+β-area, and the fine-grained uniform structure with a grain size of 10–20 μm was obtained. Internal stresses and defective substructure of the deformed alloy intensify the decomposition of the solid solution and promote the formation of evenly distributed dispersed silicides, which allows obtaining high strength and heat resistance characteristics. Tensile tests at 20; 650 and 700°C of the Ti–(6–7)Al–(2–3)Zr–(1–1.5)Si alloy samples after deformation and annealing also showed a rather high level of the tensile strength and yield strength. After 20 h exposure at the operating temperature of 700°C, the structure becomes more equilibrium, due to which the strength of the deformed alloy decreases, and the relative elongation increases. Additional alloying of the base alloy with zirconium and tin slightly increases plasticity and decreases heat-resistant properties.","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"64 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139055138","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

Characteristics of the Quality of Deposited Parts Treatment 沉积部件处理质量的特点

IF 0.9 4区材料科学

Materials Science Pub Date : 2023-12-27 DOI: 10.1007/s11003-023-00739-6

V. V. Kolomiyets, R. V. Antoshchenko, V. M. Lykyanenko, R. V. Ridnyi, S. O. Kharchenko, I. A. Fabrychnikova, S. A. Bogdanovych, O. A. Svirhun

引用次数: 0

The Influence of Surface-Active Elements on Grains Boundary Structure and Resistance Against Intergranular Corrosion of Austenitic Cr–Ni and Cr–Ni–Mo Steels 表面活性元素对奥氏体铬镍钢和铬镍钼钢晶界结构和抗晶间腐蚀性能的影响

IF 0.9 4区材料科学

Materials Science Pub Date : 2023-12-27 DOI: 10.1007/s11003-023-00743-w

T. O. Dergach, G. D. Sukhomlin, L. M. Deyneko, Z.-H. Jiang, J. Tian

{"title":"The Influence of Surface-Active Elements on Grains Boundary Structure and Resistance Against Intergranular Corrosion of Austenitic Cr–Ni and Cr–Ni–Mo Steels","authors":"T. O. Dergach, G. D. Sukhomlin, L. M. Deyneko, Z.-H. Jiang, J. Tian","doi":"10.1007/s11003-023-00743-w","DOIUrl":"https://doi.org/10.1007/s11003-023-00743-w","url":null,"abstract":"The maximum permissiblse content of surface-active elements of carbon, nitrogen and boron in low-carbon Cr–Ni and Cr–Ni–Mo steels, which provide high resistance against intergranular corrosion (IGC) when tested in strongly and weakly oxidizing environments, was established. To ensure high resistance against IGC when tested in boiling 65% HNO3 (according to ISO 3651-1), the carbon content in 03Kh18N11 (304L) and 03Kh17N14M3 (316L) steels should not exceed 0.025% and 0.015%, respectively, and when tested in boiling H2SO4 (ISO 3651-2, method B) should not exceed 0.03%. The nitrogen amount up to 0.2% does not influence negatively the IGC of the studied steels, and the simultaneous increase of nitrogen and carbon gives a negative synergistic effect. The negative influence of 0.003% and, to a greater extent, 0.03% boron on the grain boundary structure and resistance against IGC of steels hardened at temperatures >1100°C was shown. Technologies for increasing the resistance against IGC of pipes made of the studied steels were developed, taking into account the principle of grain boundary engineering of polycrystalline materials.","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"13 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139055379","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

Physicomechanical Properties of Coatings Based on Max Ti2AlC and (Ti, Nb)2AlC Phases at 20°C and 500°C 基于 Max Ti2AlC 和 (Ti，Nb)2AlC 相的涂层在 20°C 和 500°C 时的物理力学性能

IF 0.9 4区材料科学

Materials Science Pub Date : 2023-12-27 DOI: 10.1007/s11003-023-00737-8

{"title":"Physicomechanical Properties of Coatings Based on Max Ti2AlC and (Ti, Nb)2AlC Phases at 20°C and 500°C","authors":"","doi":"10.1007/s11003-023-00737-8","DOIUrl":"https://doi.org/10.1007/s11003-023-00737-8","url":null,"abstract":"Physicomechanical characteristics of 15Kh16k5N2MVFAB-Sh steel (0.15C–16Cr–5Co–2Ni–0.7V–0.6Mo–0.3Nb–0.4N): wear resistance at 20°C and 500°C and resistance to fretting fatigue at 20°C without and with coatings obtained by the method of vacuum-arc deposition using targets based on the MAX phases of ({mathrm{Ti}}_{2}{mathrm{AlC}}) and ({{mathrm{(}{mathrm{Ti}}}_{1-x}{mathrm{Nb}}_{x})}_{2}{mathrm{AlC}}) , where x = 0.1 and 0.2, are investigated. At 20°C the friction coefficient and the wear specific rate of all coatings are greater than that of the studied steel in contact with a ShKh15 steel (1.0C–1.5Cr–0.3Ni–0.3Mn–0.3Si–0.25Cu) ball under a load of 2 N. Unambiguous relationship between microhardness and tribological characteristics of materials has not been recorded. The resistance to fretting fatigue of the samples with ({mathrm{Ti}}_{2}{mathrm{AlC}}) -based coating in contact with the Ni-alloy (17Cr–12W–11Fe–6Co–3Ti–1.5Nb–1.6Al) in high-cycle region (N > ({10}^{5}) cycles) is significantly higher than that of uncoated samples. The tribological characteristics of all materials decrease at 500°C but the least for samples with ({mathrm{Ti}}_{2}{mathrm{AlC}}) based coating. We have not found positive influence of niobium doping on the wear and fretting fatigue resistance of these coatings.","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"11 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139055386","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}

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Corrosion Inhibition of Aluminum Alloy by Eco-Friendly Composition Based on Gum Arabic and Zinc Acetate 以阿拉伯胶和醋酸锌为基础的环保成分对铝合金的缓蚀作用

IF 0.9 4区材料科学

Materials Science Pub Date : 2023-12-27 DOI: 10.1007/s11003-023-00747-6

M.-O. Danyliak, S. A. Korniy

引用次数: 0

Prediction of Fill Factor and Charge Density of Self-Shielding Flux-Cored Wire with Variable Composition 不同成分自屏蔽药芯焊丝的填充因子和电荷密度预测

IF 0.9 4区材料科学

Materials Science Pub Date : 2023-12-23 DOI: 10.1007/s11003-023-00738-7

B. O. Trembach, D. V. Hlushkova, V. M. Hvozdetskyi, V. A. Vynar, V. I. Zakiev, O. V. Kabatskyi, D. V. Savenok, O. Yu. Zakavorotnyi

引用次数: 0

Cellulose Nanofiber/Polyethylene Glycol Composite Phase Change Thermal Storage Gel Based on Solid-gel Phase Change 基于固-凝胶相变的纤维素纳米纤维/聚乙二醇复合相变蓄热凝胶

IF 0.9 4区材料科学

Materials Science Pub Date : 2023-12-22 DOI: 10.5755/j02.ms.35249

Yanghua CHEN, Tingting Wang, Yanlei Pei

{"title":"Cellulose Nanofiber/Polyethylene Glycol Composite Phase Change Thermal Storage Gel Based on Solid-gel Phase Change","authors":"Yanghua CHEN, Tingting Wang, Yanlei Pei","doi":"10.5755/j02.ms.35249","DOIUrl":"https://doi.org/10.5755/j02.ms.35249","url":null,"abstract":"In this paper, cellulose nanofiber (CNF)/ polyethylene glycol (PEG) composite aerogel phase change materials (CNPCMs) were prepared utilizing porous carrier support and freeze-drying. The solid-liquid phase change to solid-gel phase change was realized, which solved the problems of PEG flow, leakage, and shape instability. The physical properties and chemical compatibility of CNPCMs were studied, and the results showed that CNPCMs ensured the overall structure stability through internal hydrogen bonding, and they were only a physical bond with each other without chemical reaction. With the increase in PEG content, the thermal conductivity of CNPCMs increased from 0.22 W/m·K to 0.33 W/m·K. The thermal exposure experiment and thermogravimetric analysis (TGA) experiment have shown that CNPCMs have good shape stability at 75 ℃ and good thermal stability below 320 ℃. In summary, the experimental results indicated that the maximum content of PEG in CNPCMs was 78 % with an optimal content of 66.7 %. The sample corresponding to the optimal content was CNPCM2 with an enthalpy of 167.9 J/g for melting and 146.1 J/g for solidification. As a thermal storage material with good thermodynamic performance, CNPCM2 has enormous potential in the storage of solar collectors.","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"71 2","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138945536","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