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Influence of production technology of thick plate rolled from shipbuilding steel of strength level 500 on structure parameters and workability characteristics at low temperatures 用强度为 500 级的造船钢材轧制厚板的生产技术对结构参数和低温下工作特性的影响
Voprosy Materialovedeniya Pub Date : 2024-02-19 DOI: 10.22349/1994-6716-2023-116-4-07-19
О. V. Sych, S. V. Korotovskaya, E. Khlusova, S. N. Petrov, Yu. A. Belikova
{"title":"Influence of production technology of thick plate rolled from shipbuilding steel of strength level 500 on structure parameters and workability characteristics at low temperatures","authors":"О. V. Sych, S. V. Korotovskaya, E. Khlusova, S. N. Petrov, Yu. A. Belikova","doi":"10.22349/1994-6716-2023-116-4-07-19","DOIUrl":"https://doi.org/10.22349/1994-6716-2023-116-4-07-19","url":null,"abstract":"The influence of manufacturing technology of low-alloy steel with yield strength not less than 500 MPa on structure parameters has been studied. Under industrial conditions, two 50 mm thick sheets were produced by different technologies: 1) hot rolling followed by furnace quenching and high-temperature tempering; 2) quenching from rolling heating followed by high-temperature tempering. By means of optical, scanning and transmission electron microscopy the structural features of steel were revealed. Standard mechanical properties and low-temperature serviceability characteristics were determined.","PeriodicalId":23679,"journal":{"name":"Voprosy Materialovedeniya","volume":"25 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140449696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hardening and improving the corrosion resistance of carbon steel 45 with thermal chemical treatment 通过热化学处理硬化 45 号碳钢并提高其耐腐蚀性能
Voprosy Materialovedeniya Pub Date : 2024-02-19 DOI: 10.22349/1994-6716-2023-116-4-32-41
M. N. Timofeev, S. V. Brudnik, S. Pichkhidze
{"title":"Hardening and improving the corrosion resistance of carbon steel 45 with thermal chemical treatment","authors":"M. N. Timofeev, S. V. Brudnik, S. Pichkhidze","doi":"10.22349/1994-6716-2023-116-4-32-41","DOIUrl":"https://doi.org/10.22349/1994-6716-2023-116-4-32-41","url":null,"abstract":"The issues of creating a hardening coating by plasma spraying of Ti powder on steel grade 45 with subsequent cementation are considered in order to improve mechanical properties and evaluate corrosion resistance. X-ray phase analysis showed the presence of basic (Fe) and strengthening phases (TiC, Fe3C) in the material under study.","PeriodicalId":23679,"journal":{"name":"Voprosy Materialovedeniya","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140452291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural materials selection for the sodium-cooled reactor plant steam generator 钠冷堆装置蒸汽发生器结构材料的选择
Voprosy Materialovedeniya Pub Date : 2023-07-26 DOI: 10.22349/1994-6716-2023-114-2-155-165
A. S. Kudriavtsev
{"title":"Structural materials selection for the sodium-cooled reactor plant steam generator","authors":"A. S. Kudriavtsev","doi":"10.22349/1994-6716-2023-114-2-155-165","DOIUrl":"https://doi.org/10.22349/1994-6716-2023-114-2-155-165","url":null,"abstract":"Steels and alloys of various structural classes are considered from the point of view of the required level of service characteristics necessary for the safe operation and manufacture of a sodium-cooled reactor plant steam generator. After the analysis, it was found that the optimal structural material for the steam generator of a high-power reactor plant with a sodium coolant is martensitic stainless steel with a chromium content of 12 wt.%.","PeriodicalId":23679,"journal":{"name":"Voprosy Materialovedeniya","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87224637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Anode behavior and oxidation of Zn22Al alloy doped with scandium 掺钪Zn22Al合金的阳极行为与氧化
Voprosy Materialovedeniya Pub Date : 2023-07-26 DOI: 10.22349/1994-6716-2023-114-2-147-154
M. M. Mirmukhamedov, U. R. Jobirov, I. Ganiev, Z. Obidov
{"title":"Anode behavior and oxidation of Zn22Al alloy doped with scandium","authors":"M. M. Mirmukhamedov, U. R. Jobirov, I. Ganiev, Z. Obidov","doi":"10.22349/1994-6716-2023-114-2-147-154","DOIUrl":"https://doi.org/10.22349/1994-6716-2023-114-2-147-154","url":null,"abstract":"The article contains the results of potentiodynamic and thermogravimetric research of anode behavior and oxidation of Zn22Al alloy, doped with scandium, in various media. The anode, kinetic and energy characteristics of alloys in isothermal conditions have been established. Doping of the Zn22Al alloy with scandium in an amount of 0.1 to 1.0 wt. % contributes to the increase of its anodic resistance to oxidation. The rate of oxidation and corrosion of alloys doped (0.01–0.1%) with scandium is 1.5–3 times lower than that of the Zn22Al alloy. Alloy oxidation products consist of a mixture of protective films ZnO, Sc2O3, ZnAl2O4 and Al2O3·Sc2O3. ","PeriodicalId":23679,"journal":{"name":"Voprosy Materialovedeniya","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82338740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Calculation of fatigue damage under cyclic complex loading considering the effect of the strain rate 考虑应变率影响的循环复合载荷下疲劳损伤计算
Voprosy Materialovedeniya Pub Date : 2023-07-26 DOI: 10.22349/1994-6716-2023-114-2-136-146
B. Margolin, A. Gulenko
{"title":"Calculation of fatigue damage under cyclic complex loading considering the effect of the strain rate","authors":"B. Margolin, A. Gulenko","doi":"10.22349/1994-6716-2023-114-2-136-146","DOIUrl":"https://doi.org/10.22349/1994-6716-2023-114-2-136-146","url":null,"abstract":"A method has been proposed for calculating fatigue damage under cyclic loading, in which the loading in half-cycles is not simple, i.e., the stress components in a half-cycle do not change proportionally to one parameter. In addition, the proposed method takes into account the situation when the strain rate in a half-cycle affects the degree of damage to the material (for example, in the case of material deformation under conditions of creep or exposure to a corrosive environment) and this rate can change in different loading half-cycles.","PeriodicalId":23679,"journal":{"name":"Voprosy Materialovedeniya","volume":"91 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84385596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Obtaining high-strength carbon fiber based on polyphenylene sulfide by ATL method with laser heating 激光加热ATL法制备聚苯硫醚基高强度碳纤维
Voprosy Materialovedeniya Pub Date : 2023-07-26 DOI: 10.22349/1994-6716-2023-114-2-125-135
D. D. Dvoryantsev, A. Sargsyan, A. Anisimov, I. V. Lishevich
{"title":"Obtaining high-strength carbon fiber based on polyphenylene sulfide by ATL method with laser heating","authors":"D. D. Dvoryantsev, A. Sargsyan, A. Anisimov, I. V. Lishevich","doi":"10.22349/1994-6716-2023-114-2-125-135","DOIUrl":"https://doi.org/10.22349/1994-6716-2023-114-2-125-135","url":null,"abstract":"The method of manufacturing high-strength structural carbon fiber from toupreg based on PPS-214 grade polyphenylene sulfide (Fortron, Germany) and AS4 high-strength carbon fiber (Hexcel, USA) using a promising ATL-technology (Automated Tape Laying) with laser heating is considered. The technology was adapted for the material under study, laboratory models in the form of plates were made, physical and mechanical tests of laboratory samples were carried out. The quality of the binder distribution and the presence of defects were assessed by raster electron microscopy. The influence of the reinforcement, pressing and vacuum heat treatment schemes on improving the mechanical properties of the studied carbon fiber was investigated. It has been found that the samples subjected to vacuum heat treatment have higher mechanical properties due to an increase in the adhesion of the toupreg tapes to each other and the removal of discontinuities formed during the calculation. The value of the ultimate strength at interlayer shear of samples made using a parallel-diagonal scheme increases by 108%, at bending by 370% and by 65% at compression.By processing the toupregs by the ATL with laser heating and subsequent thermal treatment of the products, it is possible to obtain high-strength structural materials with improved physical and mechanical properties, as well as high repeatability and equality of properties throughout the area of the products, even using complex reinforcement schemes.","PeriodicalId":23679,"journal":{"name":"Voprosy Materialovedeniya","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79800896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 γ-radiation on fluorite crystals with a trivalent rare-earth ions γ辐射对含三价稀土离子萤石晶体的影响
Voprosy Materialovedeniya Pub Date : 2023-07-26 DOI: 10.22349/1994-6716-2023-114-2-195-202
S. Sarkisov, V. Yusim
{"title":"Effects of γ-radiation on fluorite crystals with a trivalent rare-earth ions","authors":"S. Sarkisov, V. Yusim","doi":"10.22349/1994-6716-2023-114-2-195-202","DOIUrl":"https://doi.org/10.22349/1994-6716-2023-114-2-195-202","url":null,"abstract":"The paper considers phenomena of formation of color centers due to intrinsic and impurity defects in fluorite crystals activated by rare-earth ions Pr3+, Nd3+, Yb3+ under γ- and UV-radiation. Using CaF2 activated with Yb3+ and Pr3+ ions as an example, the work shows the effect of the photodynamic process on the photochemical resistance to formation of color centers of a Yb-containing crystal. It also demonstrates the effect of heating on the restoration of the original color of a Pr-containing crystal after γ-radiation as a result of change in the electronic state of praseodymium ions. The features of the formation of ions in the R2+ state in CaF2:R3+ (R3+ = Pr, Nd, Yb) crystals after γ-irradiation are investigated and explained, and quantitative estimates of the R3+→R2+ conversion processes are given. ","PeriodicalId":23679,"journal":{"name":"Voprosy Materialovedeniya","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82036398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dose dependences for materials of vver pressure vessels and their support structures 压力容器及其支撑结构材料的剂量依赖性
Voprosy Materialovedeniya Pub Date : 2023-07-26 DOI: 10.22349/1994-6716-2023-114-2-166-194
B. Margolin, E. Yurchenko
{"title":"Dose dependences for materials of vver pressure vessels and their support structures","authors":"B. Margolin, E. Yurchenko","doi":"10.22349/1994-6716-2023-114-2-166-194","DOIUrl":"https://doi.org/10.22349/1994-6716-2023-114-2-166-194","url":null,"abstract":"The basic equations for structural integrity assessment on brittle fracture criterion are presented. The main mechanisms of radiation and thermal embrittlement of materials used for WWER RPV (15Kh2MFA, 15Kh2NMFA grade steels and its weld metal) and their support structures (St.3, 09G2S grade steels and its weld metal). The main considerations for construction of the trend curves are given and various types of trend curves are presented. The trend curves taken into account metallurgical and operational factors, such as content of alloying and impurity elements, neutron fluence, operating time and irradiation temperature. The analysis of the neutron flux effect under different dominant mechanisms of embrittlement of RPV materials is presented. The effect of irradiation temperature on contribution of different mechanisms of radiation embrittlement typical for materials of WWER RPV and SS is considered. ","PeriodicalId":23679,"journal":{"name":"Voprosy Materialovedeniya","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77852958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On a mathematical model of the cooling and crystallization of metal drops during centrifugal granulation 离心造粒过程中金属液滴冷却结晶的数学模型
Voprosy Materialovedeniya Pub Date : 2023-07-25 DOI: 10.22349/1994-6716-2023-114-2-98-112
M. Zharov
{"title":"On a mathematical model of the cooling and crystallization of metal drops during centrifugal granulation","authors":"M. Zharov","doi":"10.22349/1994-6716-2023-114-2-98-112","DOIUrl":"https://doi.org/10.22349/1994-6716-2023-114-2-98-112","url":null,"abstract":"A mathematical model has been developed for the crystallization of aluminum alloy granules under cooling conditions in an aqueous and water-steam media. The practical significance of the mathematical model lies in predicting the average value of the dendritic parameter of the obtained granules depending on the granulation method, the characteristics of the granulation process and the size of the obtained granules. The average value of the dendritic parameter makes it possible to predict the fineness of the granule structure and, consequently, the mechanical properties of the granular material. The mathematical model makes it possible to determine the speed of a melt drop in an aqueous media and takes into account the presence of a steam jacket effect, i.e., a vapor layer that appears between a crystallizing drop and an aqueous media, which significantly reduces the intensity of heat removal and the rate of crystallization. The application of the mathematical model was tested on the obtaining of granules of high-alloyed aluminum alloys (alloys D1 and D16 of the Al–Cu–Mg system, alloys V95 and V96Ts of the Al–Zn–Mg–Cu system), made by centrifugal spraying of the melt from a perforated rotating crucible and drip method during cooling in an aqueous media. The cooling rate and the crystallization rate of the granules obtained in real experiments were determined by measuring the dendritic parameter of the material structure. The mathematical model showed a high convergence of the simulation results and of real experiments of aluminum alloy granulation.","PeriodicalId":23679,"journal":{"name":"Voprosy Materialovedeniya","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79739005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of structural-phase transformations in a foundry structural alloy based on Ni3Al intermetallic compound after high-temperature exposures and during the operation of the alloy as a nozzle blade Ni3Al金属间化合物铸造组织合金高温暴露后及其作为喷嘴叶片使用过程中的组织相变研究
Voprosy Materialovedeniya Pub Date : 2023-07-25 DOI: 10.22349/1994-6716-2023-114-2-60-70
O. Bazyleva, E. Arginbaeva, E. Chabina, A. N. Raevskikh
{"title":"Investigation of structural-phase transformations in a foundry structural alloy based on Ni3Al intermetallic compound after high-temperature exposures and during the operation of the alloy as a nozzle blade","authors":"O. Bazyleva, E. Arginbaeva, E. Chabina, A. N. Raevskikh","doi":"10.22349/1994-6716-2023-114-2-60-70","DOIUrl":"https://doi.org/10.22349/1994-6716-2023-114-2-60-70","url":null,"abstract":"The paper presents studies of structural and phase transformations in intermetallic compositions based on the Ni3Al compound depending on alloying and high-temperature treatments, carried out in the process of creating a cast structural alloy for operation in the temperature range of 900–1200°C. Experimentally, when testing the developed intermetallic alloy as nozzle blades of the 1st stage of a high-pressure turbine, it was confirmed that the alloy is thermally stable at temperatures up to 1200°C. ","PeriodicalId":23679,"journal":{"name":"Voprosy Materialovedeniya","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77230713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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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