AP19576369 « Increasing the strength and operational properties of austenitic chromium-nickel steel wire by thermomechanical treatment»

1) Volokitina Irina Evgenyevna – PhD, Professor of the Department of Metallurgy and Materials Science, project manager.

Scopus ID: 55902810800  

ResearcherID: G-4526-2018  

https://orcid.org/0000-0002-2190-5672

2) Volokitin Andrey Valeryevich – PhD, Associate Professor of the Department of Metal Forming, senior researcher.

Scopus ID: 56524247500  

ResearcherID: U-8580-2018

https://orcid.org/0000-0002-0886-3578

3) Panin Evgeny Alexandrovich – PhD, Professor of the Department “Metalworking by pressure”, senior researcher.

Scopus ID: 55903153300  

ResearcherID: B-7581-2015 

https://orcid.org/0000-0001-6830-0630

4) Fedorova Tatyana Dmitrievna – Master’s degree, researcher.

Scopus ID: 57222628232.

5) Lavrinyuk Dmitry Nikolaevich – master of the thermal department of LPC-2 of Karmet JSC, junior researcher.

Scopus ID: 57223636463

6) Denisova Anastasia Igorevna is a doctoral student in the specialty “Nanotechnology and nanomaterials”, a junior researcher.

Scopus ID: 57430197600

The results of scientific research will be published at least in 3 (three) articles and (or) reviews in peer-reviewed scientific journals indexed in the Science Citation Index Expanded database Web of Science and (or) having the CiteScore percentile in the Scopus database at least 35 (thirty-five). In addition, 1 (one) article will be published in a peer-reviewed foreign or domestic publication recommended by Committee for Quality Assurance in Education and Science (CQAES) of the Ministry of Education and Science of the Republic of Kazakhstan. Research results will be presented at International European conferences in Bulgaria, Poland or other international conferences abroad, as well as at international conferences in Russia, Belarus and Kazakhstan. Based on achieved results the application for useful model patent of the Republic of Kazakhstan will be applied.

The project results will be new, scientifically grounded knowledge about new developed innovative combined process of thermo-mechanical metastable austenitic stainless steels treatment, allowing to obtain long wire with ultrafine grain structure and increased level of mechanical and operational properties. Recommendations will be developed for implementation of stainless wire thermomechanical processing new method with improved performance properties. In case of further development and industry implementation of metastable austenitic stainless steel wire thermomechanical processing innovative combined technology within this project, it is possible to create innovative production and new jobs.

Obtained experimental project results about γ-α transformation in metastable austenitic stainless steels during drawing at cryogenic temperatures will allow to develop and supplement existing knowledge about the mechanism of polymorphic transformation in steels and can be used in lectures for the theory of heat treatment and phase transformations in metals. In addition, obtained data will be used in relevant direction and specialization bachelors, masters and PhD students training. Obtained research results will be used by Bachelors, Masters and PhD students in educational process and in their research towards obtaining materials with unique or increased level of physical-mechanical properties.

1) An analytical review of scientific, technical and patent literature on methods and technologies for producing wire with increased operational and mechanical characteristics has been conducted. Based on this review, a new thermomechanical treatment of stainless wire has been developed. The fundamental difference between our solution and the known technological solutions for obtaining long-length products from metastable austenitic steels in a continuous manner is cryogenic cooling immediately after the drawing process for the complete transition of the austenitic structure to martensite. Additional hardening will also be achieved using the post-deformation aging stage, which will reduce the number of softening thermal treatments during wire production and thereby reduce the cost of wire.

2) A theoretical study of the factors influencing the martensitic transformation has been carried out. Such factors as: chemical composition, initial grain size, deformation temperature, type of deformation and stress-strain state, deformation rate are investigated. As well as the effect of martensitic transformation on the mechanical properties of steel.

3) To implement the combined innovative thermomechanical processing of wire at the university’s drawing mill, a design of a reservoir chamber for cryogenic cooling of wire immediately after the drawing process has been developed. The wire forming process is the same as when deformed at room temperature. The pointed end of the wire is inserted into the fiber, after which it is passed through an empty tank chamber, in which cryogenic cooling is carried out. This tank chamber is installed in the mill line immediately behind the fiber holder. Then the end of the wire is fixed to the drum of the drawing mill and wound onto the drum. When the drawing mill reaches the working deformation rate, the tank chamber is filled with liquid nitrogen. The tank chamber is equipped with a recirculating nitrogen supply system.

4) Computer models of the combined technology of thermomechanical processing of stainless wire were constructed and optimal parameters were determined to ensure the best stress-strain state and energy-strength parameters of the process.

1. I. Volokitina, A. Volokitin, A. Denissova, T. Fedorova, D. Lawrinuk, A. Kolesnikov, A. Yerzhanov, Y. Kuatbay, Y. Liseitsev. Effect of thermomechanical processing of building stainless wire to increase its durability. Case Studies in Construction Materials, 18, 2023, – https://doi.org/10.1016/j.cscm.2023.e02346 (Scopus, 71th percentile, Q1)

2. I. E. Volokitina. Structural and phase transformations in alloys under the severe plastic deformation. Progress in Physics of Metals, 2023, 24, No. 3: 593–622., – https://doi.org/10.15407/ufm.24.03.593 (Scopus, 65th percentile)

3. Волокитина И.Е., Волокитин А.В., Панин Е.А., Федорова Т.Д., Лавринюк Д.Н., Денисова А.И. Изменение микроструктуры стальной проволоки при волочении в криогенных условиях. Перспективные материалы и технологии: материалы международного симпозиума, Минск, 2023, С. 18-19

4. Volokitina I.E., Denissova A.I., Volokitin A.V., Fedorova T.D., Lavrinyuk D.N. Application of Cryogenic Technologies in Deformation Processing of Metals. Progress in Physics of Metals, 2024, 25, No. 1: 161-194, – https://doi.org/10.15407/ufm.25.01.161 (Scopus, 65th percentile, Q3);

5. Volokitina I.E., Volokitin A.V., Panin E.A. Modeling of Grain Size Change and Phase Transformation of Stainless Wire during Drawing with Cryogenic Cooling. Metallography, Microstructure, and Analysis 2024, – https://doi.org/10.1007/s13632-024-01078-x (Scopus, 59th percentile, Q2)

6. Волокитина И. Е., Панин Е.А., Волокитин А. В., Колесников А. С., Федорова Т.Д. Анализ влияния криогенного охлаждения при волочении на механические свойства проволо-ки марки AISI 316. Металлург, 2024, №3. С. 30-34 (ВАК РФ)

7. Volokitina I., Volokitin A., Panin E. Modelling of combined thermome-chanical processing of stainless steel wire. International scientific journal. Mathematical modeling, 2024, 1, P. 10-13.