{"title":"Influence of various thermal conditions on the composition of high‑temperature diffusion oxides (satellite inclusions) in solid steel","authors":"T. I. Sidorenko, E. V. Ermachenok, Y. S. Belash","doi":"10.21122/1683-6065-2023-1-62-67","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-62-67","url":null,"abstract":"The main goal of any modern production of long products is to ensure the required quality of finished products. One of the important quality indicators, along with mechanical and technological properties, is the quality of the rolled metal surface. The article presents the results of experimental studies of the composition of high‑temperature diffusion oxides formed on the surface of artificially deposited defects under various conditions of temperature exposure using the microrentgenospectral method on a scanning electron microscope with an energy dispersive microanalyzer. The characteristic features in terms of the percentage and presence of certain chemical elements in the scale of various steel grades have been established.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117209971","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}
{"title":"Features and practical experience in obtaining complex profile castings from aluminum alloys","authors":"M. A. Sadokha, A. V. Kryutsou","doi":"10.21122/1683-6065-2023-1-41-46","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-41-46","url":null,"abstract":"Variants of preparation of production of castings from aluminum alloys in conditions of single and small‑scale production are considered. It is established that in order to reduce the time and cost of obtaining castings, it is most expedient to carry out end‑to‑end design and manufacture of technological equipment using additive technologies and casting in sand‑resin molds obtained using the “no‑bake” technology.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"286 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116111448","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}
{"title":"Technical features of controlled cooling of circular workpieces after ring rolling","authors":"V. Antonyuk, S. G. Sandomirski, V. Yavorski","doi":"10.21122/1683-6065-2023-1-106-111","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-106-111","url":null,"abstract":"The analysis of the ring rolling machine capabilities in providing increased accuracy of ring blanks is performed. The necessity of operator’s participation in controlling the ring rolling machine to achieve the required accuracy even with full automation of the ring blanks manufacturing process is noted. The necessity of controlling the process of cooling of circular blanks after the circular rolling machine to ensure increased accuracy of the circular blanks has been noted. To eliminate the ovality of low rigidity ring blanks after the circular rolling mill it is proposed to use the technology of their controlled cooling and stabilization. The sequence of thermal strain control of the ring blanks during cooling to preserve the achieved accuracy of the “hot” ring after the ring rolling on the “cold” ring after cooling has been developed. The proposed recommendations are intended for the development of technological support for automated ring rolling complex at OJSC “BELAZ”.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134116746","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}
{"title":"Artifacts in metallography: etching pits","authors":"A. Anisovich","doi":"10.21122/1683-6065-2023-1-112-117","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-112-117","url":null,"abstract":"The article considers etch pits that appear in metals and alloys during metallographic etching as an artifact. The optical contrasting tools capabilities, such as dark field, polarized light, and differential interference contrast in detecting etch pits, are demonstrated.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123123464","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}
{"title":"Influence of the method of aerodynamic sound hardening on the hardness of cast iron","authors":"A. O. Ulitenok","doi":"10.21122/1683-6065-2023-1-146-147","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-146-147","url":null,"abstract":"<jats:p>.</jats:p>","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"117 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122189443","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}
{"title":"Structural features of a composite material produced by electric pulsed pressing from iron‑based multi‑component powder mixtures","authors":"D. Minko, L. Dyachkova, T. Pinchuk","doi":"10.21122/1683-6065-2023-1-118-125","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-118-125","url":null,"abstract":"The study is dedicated to the electric pulse pressing use for the composite materials production from diffusion‑alloyed iron powders. It is shown that the addition of a low–melting metal component, tin, has a positive effect on the compaction of the composite iron powder during electric pulse pressing. The density of samples from Dystaloy AB iron powder with the addition of 10 % tin reaches 7.3–7.5 g/cm3. It is impossible to obtain such a density in the conventional cold pressing process at a pressure of 100– 120 MPa. It is established that due to the short duration of thermal exposure during electric pulse pressing, diffusion processes do not have time to pass and the distribution of alloying elements in the iron base is uneven. A short thermal exposure causes oxidation of the surface of the powder particles, which also negatively affects the diffusion processes. Therefore, when obtaining alloyed powder materials by electric pulse pressing, the process must be carried out in a protective atmosphere. The revealed presence of a nanoscale substructure formed due to the effects of intense plastic deformation and temperature indicates the hardening of the powder composite material during electric pulse pressing. These features can be useful in the development of technologies alternative to the warm pressing of plasticized powders.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123884071","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}
{"title":"Comprehensive study of characteristic signs of defects detected during magnetic powder control at the final stage of production of seamless hot‑rolled pipes","authors":"E. A. Naumenko, O. Rozhkova, I. A. Kovaleva","doi":"10.21122/1683-6065-2023-1-69-72","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-69-72","url":null,"abstract":"Defects on the outer surface of seamless hot‑rolled steel pipes are formed both as a result of the defects’ transformation in the surface and macrostructure of the initial workpiece, and due to non‑compliance with the rolling technology. Timely detection of defects and elimination of the causes of their formation, allows you to get high‑quality products with high operational reliability. Detection of violations of technology, control of the technological process, carrying out metallographic studies allow classifying defects and establishing the nature and causes of their formation.The article presents the results of a metallographic study of a defect on the outer surface of a hot‑rolled seamless pipe. The genetic and morphological signs of the defect were determined. Descriptions of the appearance of the defect, the microstructure in the defect zone are given. A comparative analysis of the defect detected during magnetic powder control with defects on experimental pipe blanks with artificial defects was carried out. Based on the data obtained, the causes of the defect formation are determined, its classification is given.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129478292","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}
F. Panteleenko, R. Y. Popov, V. Shmuradko, A. Samsonova
{"title":"About the problems and results of obtaining products from technical ceramics for metallurgical production. Message 1","authors":"F. Panteleenko, R. Y. Popov, V. Shmuradko, A. Samsonova","doi":"10.21122/1683-6065-2023-1-88-95","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-88-95","url":null,"abstract":"The article presents the research’s results in the field of multifunctional ceramic materials synthesis for metallurgical, machine‑tool and other branches related to the metal treatment, their alloys and products from them; current trends and tendencies associated with the production of goods from such materials. The information on expanding the local raw material sources for the production of ceramics with the involvement of local enterprises is provided. In addition, the prospects for the industrial potential development to produce such goods are observed.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116203122","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}
N. Lutchenko, A. Arbuz, A. A. Kavalek, E. Panin, F. Popov, M. Magzhanov
{"title":"Kazakhstan Study of the influence of large shear deformations and vortex flow of metal on the formation of an equiaxed ultrafine‑grained structure of the E110 zirconium alloy by the method of RSP","authors":"N. Lutchenko, A. Arbuz, A. A. Kavalek, E. Panin, F. Popov, M. Magzhanov","doi":"10.21122/1683-6065-2023-1-128-134","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-128-134","url":null,"abstract":"In this work, the task was to investigate the processes of microstructure change occurring in relatively large bulk bars under the action of large plastic deformations. Such large levels of deformation are usually achievable in high pressure twisting of small flat disks, but are difficult to achieve in large bulk bars. The method of radial shear rolling makes it possible to achieve comparable ultrahigh degrees of deformation (~45 mm/mm) in combination with the vortex flow of the metal. Sequential rolling of the E110 zirconium alloy was carried out under extreme conditions on 2 radial shear rolling mills with a total diameter reduction ε = 185 % and a maximum accumulated strain = 46 mm/mm. To assess the level of deformation and its distribution over the section, FEM modeling was carried out in Deform‑3D. The resulting structure was studied by electron microscopy (TEM/SEM). A detailed cross‑sectional study of the EBSD structure was performed with a resolution of 1 mm. A gradient structure with a predominance of an equiaxed ultrafine‑grained structure was found, which was not very pronounced compared to the use of smaller deformations.","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"224 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125720353","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}
M. A. Sadokha, B. M. Nemenenok, V. M. Konstantinov, T. N. Lipatkina
{"title":"The 30th International Scientific and Technical Conference “Foundry and Metallurgy 2022. Belarus” and the 5th International Conference of Suppliers OJSC “BSW – Management Company of Holding “BMС","authors":"M. A. Sadokha, B. M. Nemenenok, V. M. Konstantinov, T. N. Lipatkina","doi":"10.21122/1683-6065-2023-1-11-18","DOIUrl":"https://doi.org/10.21122/1683-6065-2023-1-11-18","url":null,"abstract":"<jats:p>.</jats:p>","PeriodicalId":278844,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130107501","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}