Pub Date : 2024-04-10DOI: 10.21122/1683-6065-2024-1-83-92
A. Volochko, V. A. Zelenin, M. S. Kovalko, D. S. Fedorovich, Wang Cheng
The article presents calculations and analysis of phase equilibria in magnesium alloys of the Mg–Al–Mn–Ca system with additional alloying of Zr and La. An assessment of the influence of the degree, deformation rate, and extrusion temperature on the composition, structure, and mechanical properties of the material has been evaluated. The impact of heat treatment of deformed samples on the complex of strength and plastic properties has been investigated.
{"title":"Magnesium alloys based on the Mg–Al– Mn–Ca system, additionally alloyed with Zr and La for high‑speed deformation of products and semi‑finished products","authors":"A. Volochko, V. A. Zelenin, M. S. Kovalko, D. S. Fedorovich, Wang Cheng","doi":"10.21122/1683-6065-2024-1-83-92","DOIUrl":"https://doi.org/10.21122/1683-6065-2024-1-83-92","url":null,"abstract":"The article presents calculations and analysis of phase equilibria in magnesium alloys of the Mg–Al–Mn–Ca system with additional alloying of Zr and La. An assessment of the influence of the degree, deformation rate, and extrusion temperature on the composition, structure, and mechanical properties of the material has been evaluated. The impact of heat treatment of deformed samples on the complex of strength and plastic properties has been investigated.","PeriodicalId":506783,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140717906","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}
Pub Date : 2024-04-10DOI: 10.21122/1683-6065-2024-1-39-46
S. A. Savchenko, S. M. Volosovich, A. A. Kuchkov, I. V. Astapenko, A. B. Sychkov
The article presents the results of research on the development and mastery of the technological process of rolling reinforcement in coils with a nominal diameter of 6 mm of strength class A500C of a double‑sided periodic profile of the 2f form, ensuring the required mechanical properties, improving complex quality indicators based on improving the chemical composition and technological modes of two‑stage cooling on the Stelmor line taking into account its cooling and transporting abilities. A method of hot rolling of reinforcement with a double‑sided crescent (2f) profile is proposed; technological factors influencing the strength, plastic and operational properties of reinforcing bars through the formation of its effective microstructure are considered. The chemical composition of steel was proposed and modes of thermomechanical hardening of reinforcement with rolling heating were developed, providing high consumer properties. The results of mechanical tests of rolled reinforcing bars in coils and comparative data on the mechanical properties and geometric parameters of the reinforcement are also presented.
{"title":"Development of technology and development of production of reinforcement no. 6 of strength class A500S form 2f in coils according to the requirements of GOST 34028–2016","authors":"S. A. Savchenko, S. M. Volosovich, A. A. Kuchkov, I. V. Astapenko, A. B. Sychkov","doi":"10.21122/1683-6065-2024-1-39-46","DOIUrl":"https://doi.org/10.21122/1683-6065-2024-1-39-46","url":null,"abstract":"The article presents the results of research on the development and mastery of the technological process of rolling reinforcement in coils with a nominal diameter of 6 mm of strength class A500C of a double‑sided periodic profile of the 2f form, ensuring the required mechanical properties, improving complex quality indicators based on improving the chemical composition and technological modes of two‑stage cooling on the Stelmor line taking into account its cooling and transporting abilities. A method of hot rolling of reinforcement with a double‑sided crescent (2f) profile is proposed; technological factors influencing the strength, plastic and operational properties of reinforcing bars through the formation of its effective microstructure are considered. The chemical composition of steel was proposed and modes of thermomechanical hardening of reinforcement with rolling heating were developed, providing high consumer properties. The results of mechanical tests of rolled reinforcing bars in coils and comparative data on the mechanical properties and geometric parameters of the reinforcement are also presented.","PeriodicalId":506783,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140716828","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}
Pub Date : 2024-04-10DOI: 10.21122/1683-6065-2024-1-20-25
Y. Gutko, V. V. Voytenko
The results of the experimental impact study for the mass fractions of ultra‑fine metal powders added into compositions of core mixtures on technical characteristics and physical properties of the foundry sodium silicate sand cores under influence of high temperatures during production of metal castings are presented and discussed. The dependences for technical characteristics and physical properties of the cores on the mass fractions of ultra‑fine powders based on aluminum, steel, and bronze are established. The significant reserves for improving a knocking‑out ability of the cores based on promising compositions for cast iron by adding ultra‑fine powders of aluminum or bronze into core mixtures are revealed. It is established that the best knockingout ability of the cores in combination with a low outgassing rate and a high gas permeability can be achieved by combining 15.0 wt. % crushed seashell and 0.5–1.0 wt. % aluminum powder. The boundaries for reasonable use of a recycled mixture in preparation of a core mixture are determined.
{"title":"Experimental impact study of ultra‑fine metal powders on technical characteristics and physical properties of foundry sodium silicate sand cores","authors":"Y. Gutko, V. V. Voytenko","doi":"10.21122/1683-6065-2024-1-20-25","DOIUrl":"https://doi.org/10.21122/1683-6065-2024-1-20-25","url":null,"abstract":"The results of the experimental impact study for the mass fractions of ultra‑fine metal powders added into compositions of core mixtures on technical characteristics and physical properties of the foundry sodium silicate sand cores under influence of high temperatures during production of metal castings are presented and discussed. The dependences for technical characteristics and physical properties of the cores on the mass fractions of ultra‑fine powders based on aluminum, steel, and bronze are established. The significant reserves for improving a knocking‑out ability of the cores based on promising compositions for cast iron by adding ultra‑fine powders of aluminum or bronze into core mixtures are revealed. It is established that the best knockingout ability of the cores in combination with a low outgassing rate and a high gas permeability can be achieved by combining 15.0 wt. % crushed seashell and 0.5–1.0 wt. % aluminum powder. The boundaries for reasonable use of a recycled mixture in preparation of a core mixture are determined.","PeriodicalId":506783,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"163 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140719776","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}
Pub Date : 2024-04-10DOI: 10.21122/1683-6065-2024-1-36-38
I. N. Ushakova, N. A. Svistun, A. L. Svistun
The analysis of the application of various cooling mixtures in metallurgy is given. The dangerous and harmful production factors when using cooling mixtures are outlined. Characteristic and recommendations for the use of the most well‑known cooling mixtures ALTIBIO are provided.
{"title":"On the issue of the application of cooling mixtures","authors":"I. N. Ushakova, N. A. Svistun, A. L. Svistun","doi":"10.21122/1683-6065-2024-1-36-38","DOIUrl":"https://doi.org/10.21122/1683-6065-2024-1-36-38","url":null,"abstract":"The analysis of the application of various cooling mixtures in metallurgy is given. The dangerous and harmful production factors when using cooling mixtures are outlined. Characteristic and recommendations for the use of the most well‑known cooling mixtures ALTIBIO are provided.","PeriodicalId":506783,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140717297","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}
Pub Date : 2024-04-10DOI: 10.21122/1683-6065-2024-1-93-95
V. Y. Stetsenko
Показано, что элементарными строительными частицами фотонной материи являются отрицательный, положительный и нейтральный фотоны. Из них образуются фотонные электроны и позитроны, из которых формируются фотонные протоны и нейтроны. Последние образуют фотонные ядра. Они захватывают фотонные электроны и формируют атомы фотонной материи, из которых образуется вещественная материя, изучаемая и используемая людьми. Из фотонной материи состоит тело человека и весь вещественный мир. Элементарными строительными частицами нейтринной материи являются отрицательный, положительный и нейтральный нейтрино. Образуемые из них нейтринные электроны и позитроны формируют нейтринные протоны и нейтроны – основу нейтринного ядра. Они захватывают нейтринные электроны и формируют атомы нейтринной материи, из которых образуется духовная материя, не изучаемая людьми. Из нейтринной материи состоит душа человека и весь духовный мир. Показано, что душа человека в 10000 раз легче его тела. Нейтринная материя значительно меньше подвержена воздействию гравитации, чем фотонная материя.
{"title":"Фотонная и нейтринная материя","authors":"V. Y. Stetsenko","doi":"10.21122/1683-6065-2024-1-93-95","DOIUrl":"https://doi.org/10.21122/1683-6065-2024-1-93-95","url":null,"abstract":"Показано, что элементарными строительными частицами фотонной материи являются отрицательный, положительный и нейтральный фотоны. Из них образуются фотонные электроны и позитроны, из которых формируются фотонные протоны и нейтроны. Последние образуют фотонные ядра. Они захватывают фотонные электроны и формируют атомы фотонной материи, из которых образуется вещественная материя, изучаемая и используемая людьми. Из фотонной материи состоит тело человека и весь вещественный мир. Элементарными строительными частицами нейтринной материи являются отрицательный, положительный и нейтральный нейтрино. Образуемые из них нейтринные электроны и позитроны формируют нейтринные протоны и нейтроны – основу нейтринного ядра. Они захватывают нейтринные электроны и формируют атомы нейтринной материи, из которых образуется духовная материя, не изучаемая людьми. Из нейтринной материи состоит душа человека и весь духовный мир. Показано, что душа человека в 10000 раз легче его тела. Нейтринная материя значительно меньше подвержена воздействию гравитации, чем фотонная материя.","PeriodicalId":506783,"journal":{"name":"Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)","volume":"12 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140716624","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}
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