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The Structural-Mechanical State of 12Kh1MF Steel of TPP Pipeline Bend after Long-Term Operation 长期运行后 TPP 管道弯头 12Kh1MF 钢的结构力学状态
IF 0.9 4区 材料科学
Materials Science Pub Date : 2024-03-16 DOI: 10.1007/s11003-024-00780-z
I. O. Tsybailo, H. V. Krechkovska
{"title":"The Structural-Mechanical State of 12Kh1MF Steel of TPP Pipeline Bend after Long-Term Operation","authors":"I. O. Tsybailo, H. V. Krechkovska","doi":"10.1007/s11003-024-00780-z","DOIUrl":"https://doi.org/10.1007/s11003-024-00780-z","url":null,"abstract":"<p>The mechanical characteristics and structural features of the heat-resistant 12Kh1MF steel after long-term operation in a bend of the TPP (thermal power plants) steam pipelines were analyzed. The change in the technical state of the metal of different zones of the bend and the anisotropy of properties across the pipe wall thickness were established. It was found that in the stretched zone of the bend near the outer surface of the pipe the steel degraded more intense than in other zones, which was due to the most favorable operating conditions for creep.</p>","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"155 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155579","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
Hydrogen Generation by Hydrolysis of Magnesium Hydride Composites with TiFe/Ti3Fe3O Additives and Graphite 通过水解含 TiFe/Ti3Fe3O 添加剂和石墨的氢化镁复合材料制氢
IF 0.9 4区 材料科学
Materials Science Pub Date : 2024-03-16 DOI: 10.1007/s11003-024-00779-6
O. P. Kononiuk, I. Yu. Zavaliy, V. V. Berezovets, A. R. Kytsia, I. V. Borukh
{"title":"Hydrogen Generation by Hydrolysis of Magnesium Hydride Composites with TiFe/Ti3Fe3O Additives and Graphite","authors":"O. P. Kononiuk, I. Yu. Zavaliy, V. V. Berezovets, A. R. Kytsia, I. V. Borukh","doi":"10.1007/s11003-024-00779-6","DOIUrl":"https://doi.org/10.1007/s11003-024-00779-6","url":null,"abstract":"<p>Hydrides of magnesium composites with additives of intermetallic TiFe and suboxide Ti<sub>3</sub>Fe<sub>3</sub>O were synthesized by mechanical milling in a hydrogen atmosphere. The addition of graphite reduces the particle size of the composites. The influence of catalytic additives and graphite on the hydrolysis of magnesium hydride was studied. The dependence of the amount of hydrogen obtained by hydrolysis on the time of composite milling was found.</p>","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"90 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155583","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 Polyvinylpyrrolidone as a Polymer Modifier on the Morphology and Properties of Copolyamide 聚乙烯吡咯烷酮作为聚合物改性剂对共聚酰胺形态和性能的影响
IF 0.9 4区 材料科学
Materials Science Pub Date : 2024-03-16 DOI: 10.1007/s11003-024-00788-5
T. V. Humenetskyi, A. S. Masiuk, V. Ye. Levitskyi, L. M. Bilyi
{"title":"The Influence of Polyvinylpyrrolidone as a Polymer Modifier on the Morphology and Properties of Copolyamide","authors":"T. V. Humenetskyi, A. S. Masiuk, V. Ye. Levitskyi, L. M. Bilyi","doi":"10.1007/s11003-024-00788-5","DOIUrl":"https://doi.org/10.1007/s11003-024-00788-5","url":null,"abstract":"<p>Peculiarities of copolyimide modification by polyvinylpyrrolidone in a viscous state were studied. The differential scanning calometry revealed changes in the morphology and phase transitions of modified copolyamide materials. The increased technological compatibility between the components of copolyamide-polyvinyl pyrrolidone mixture was established. The effect of the modifier on the strength and thermophysical properties of the studied thermoplastic was found. Introduction of polyvinylpyrrolidone contributes to the growth of copolyamide strength under rupture and relative elongation and leads to a certain decrease in Vicat softening point and change of copolyamide technological properties.</p>","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"32 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155584","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
Corrosion Activity of Low-Carbon Steel Under the Action of Multi-Component Anti-Icing Reagent 低碳钢在多组分抗冰试剂作用下的腐蚀活性
IF 0.9 4区 材料科学
Materials Science Pub Date : 2024-03-16 DOI: 10.1007/s11003-024-00776-9
I. V. Kravchenko, O. V. Suvorin, H. O. Tatarchenko
{"title":"Corrosion Activity of Low-Carbon Steel Under the Action of Multi-Component Anti-Icing Reagent","authors":"I. V. Kravchenko, O. V. Suvorin, H. O. Tatarchenko","doi":"10.1007/s11003-024-00776-9","DOIUrl":"https://doi.org/10.1007/s11003-024-00776-9","url":null,"abstract":"<p>Corrosion activity of a multi-component solution, namely, distiller liquid previously clarified and strengthened to 20 wt% by CaCl<sub>2</sub> including the addition of corrosion inhibitors at –5°C to low-carbon 08kp steel is studied by the gravimetric method. The holding time of the specimens is 500–650 h. In distiller liquid corrosion rate is 0.111 g/(m<sup>2</sup>×h), corrosion depth is 0.12 mm/year, steel resistance refers to the IV group (relatively resistant). When adding the hexamethylenetetramine, triethanolamine, trilon B corrosion inhibitors or their mixture in the amount of 0.5 wt% the corrosion resistance of steel improves, and the best results are achieved by adding hexamethylenetetramine with triethanolamine. The obtained results indicate the possibility of using the distiller liquid from sludge accumulator of JSC “Lysychanska Soda” with additives of such corrosion inhibitors as reagents for preventing highway surface against icing.</p>","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"26 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155439","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
Use of Polyols of Petroleum Chemical Processing as Raw Materials for the Synthesis of Polyurethanes 使用石油化工多元醇作为合成聚氨酯的原料
IF 0.9 4区 材料科学
Materials Science Pub Date : 2024-03-16 DOI: 10.1007/s11003-024-00787-6
V. YA. Suprun, V. I. Marukha, V. P. Sylovanyuk
{"title":"Use of Polyols of Petroleum Chemical Processing as Raw Materials for the Synthesis of Polyurethanes","authors":"V. YA. Suprun, V. I. Marukha, V. P. Sylovanyuk","doi":"10.1007/s11003-024-00787-6","DOIUrl":"https://doi.org/10.1007/s11003-024-00787-6","url":null,"abstract":"<p>Polyurethanes (PU) are unique heteropolymers with a wide range of physicomechanical properties, fields of use and high development potential. PU is obtained by condensation of diisocyanate and various polyol compounds. The peculiarities of the structure and synthesis of commercial polyols based on the products of secondary oil processing, namely oligomeric glycols, oxides and dicarboxylic acids are presented.</p>","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"61 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155582","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
Strength of the Welded Joint of the Connecting Pipe and the Collector of the Boiler Primary Steam Superheater 锅炉初级蒸汽过热器连接管和集热器焊接接头的强度
IF 0.9 4区 材料科学
Materials Science Pub Date : 2024-03-16 DOI: 10.1007/s11003-024-00782-x
{"title":"Strength of the Welded Joint of the Connecting Pipe and the Collector of the Boiler Primary Steam Superheater","authors":"","doi":"10.1007/s11003-024-00782-x","DOIUrl":"https://doi.org/10.1007/s11003-024-00782-x","url":null,"abstract":"<p>The strength of the welded joint of the connecting pipe and the collector made of 12Kh1MF steel is investigated within the framework of the model of elastic solid, taking into account their real geometry and the dependence of the material characteristics on temperature. Zones of the maximum operating stresses in the joint for different types of welding are identified. Design and technological solutions aimed at significant reduction of the maximum operational stresses are proposed.</p>","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"22 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155586","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 the Initial Clearance on the Fracture of Bolted Joints of Composite Materials 初始间隙对复合材料螺栓连接断裂的影响
IF 0.9 4区 材料科学
Materials Science Pub Date : 2024-03-16 DOI: 10.1007/s11003-024-00785-8
{"title":"The Influence of the Initial Clearance on the Fracture of Bolted Joints of Composite Materials","authors":"","doi":"10.1007/s11003-024-00785-8","DOIUrl":"https://doi.org/10.1007/s11003-024-00785-8","url":null,"abstract":"<p>The results of experiments studying the dependence of contact angles for different initial clearances in a bolted joint on loading are presented. Considering the change of the interacting surface area of the composite plates with a pin, the bearing capacity of the hole is determined. The modified correlation algorithm for digital image processing is used to obtain the experimental results.</p>","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"6 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140156941","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
Structure and Tribotechnical Properties of Deposited Composite Layers Based on PG 10N-01 Alloy Containing AL2O3 基于含 AL2O3 的 PG 10N-01 合金的沉积复合层的结构和摩擦技术性能
IF 0.9 4区 材料科学
Materials Science Pub Date : 2024-03-16 DOI: 10.1007/s11003-024-00781-y
S. A. Luzan, V. A. Bantkovskiy
{"title":"Structure and Tribotechnical Properties of Deposited Composite Layers Based on PG 10N-01 Alloy Containing AL2O3","authors":"S. A. Luzan, V. A. Bantkovskiy","doi":"10.1007/s11003-024-00781-y","DOIUrl":"https://doi.org/10.1007/s11003-024-00781-y","url":null,"abstract":"<p>The microstructure of deposited layers with a composite material (CM) based on the self-fluxing PG-10N-01 alloy, modified with a mechanoactivated CM obtained using the self-propagating hightemperature synthesis, was studied. The X-ray phase analysis revealed in the deposited layer structure the inclusions of nickel borides NiB , Ni<sub>2</sub>B , Ni<sub>3</sub>B , chromium borides CrB , Cr<sub>2</sub>B , chromium carbides Cr<sub>3</sub>C<sub>2</sub> , Cr<sub>7</sub>C<sub>3</sub> , distributed in the nickel matrix. The modifying CM during arc welding contributed to the grinding of structure and reduction of the friction coefficient, increase of the microhardness of the deposited coatings, and decrease of the wear intensity in various friction conditions.</p>","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"78 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155549","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 Hydrogen Embrittlement Risk of Long-Term Operated Gas Pipelines Made of 10G2BT Steel 10G2BT 钢制天然气管道长期运行的氢脆风险评估
IF 0.9 4区 材料科学
Materials Science Pub Date : 2024-03-16 DOI: 10.1007/s11003-024-00777-8
A. M. Syrotyuk, R. L. Leshchak, M. V. Hrynenko, N. T. Hembara
{"title":"Evaluation of Hydrogen Embrittlement Risk of Long-Term Operated Gas Pipelines Made of 10G2BT Steel","authors":"A. M. Syrotyuk, R. L. Leshchak, M. V. Hrynenko, N. T. Hembara","doi":"10.1007/s11003-024-00777-8","DOIUrl":"https://doi.org/10.1007/s11003-024-00777-8","url":null,"abstract":"<p>It was established that the metal of long-term operated gas pipelines made of 10G2BT steel contains relatively little hydrogen, which does not create prerequisites for the pipes hydrogen embrittlement. However, for the considered cases, it was established that the microstructure of steel is characterized by increased defectiveness, which increases with the extension of the pipeline operation time. Such a defective microstructure has an increased ability of absorbing hydrogen, and therefore there is a risk of hydrogen embrittlement of the material. It was concluded that the use of long-term operated pipelines for transportation mixtures of natural gas and hydrogen without additional verification is problematic.</p>","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"34 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155585","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 Corrosion Dissolution of the Metal Surface Layer on the Stress Concentration Factor in Butt-Welded Joins 金属表层腐蚀溶解对对接焊接接头应力集中系数的影响
IF 0.9 4区 材料科学
Materials Science Pub Date : 2024-03-11 DOI: 10.1007/s11003-024-00775-w
A. V. Moltasov, A. V. Klymenko
{"title":"The Influence of Corrosion Dissolution of the Metal Surface Layer on the Stress Concentration Factor in Butt-Welded Joins","authors":"A. V. Moltasov, A. V. Klymenko","doi":"10.1007/s11003-024-00775-w","DOIUrl":"https://doi.org/10.1007/s11003-024-00775-w","url":null,"abstract":"<p>The dissolution of the metal surface layer of butt-welded joints samples made of 09G2S steel by the anodic-cathodic process in the electrolyte, as a result of which the geometric parameters of the welded joint changed, was studied. For example, after corrosion tests the radius of transition from the weld metal to the base metal on the facial side of the joint increased from 3.07 to 3.88 mm, and on its root, side increased from 2.16 to 3.09 mm. Changes in the geometrical parameters of a welded joint affect the value of the stress concentration factors (SCF), which determine fatigue life of the welded joints Therefore, analytical calculations of the SCF in the sample of the 09G2S steel butt-weld before and after dissolution of the metal surface layer were performed. In this case, the existing formula for SCF determination on the root side of the joint was modified for the case when the bases of facial and root reinforcements were close enough. It was found that after corrosion dissolution of the metal surface layer, the maximum value of the SCF in the specimen decreased from 1.87 to 1.67.</p>","PeriodicalId":18230,"journal":{"name":"Materials Science","volume":"89 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140098121","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
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