Mechanical and electrical properties of ALTEK alloy electrical foil for transformer windings


Cite item

Full Text

Abstract

The formation of physical and mechanical properties of the aluminum alloy ALTEK (aluminum, heat-resistant, economical, abbreviated: ALTEK), belonging to the Al-Cu-Mn system with a copper concentration of 2% and manganese of 2% during annealing was studied. For this purpose, a 0.2 mm thick foil was obtained from the studied alloy using hot and then cold rolling, which was then annealed at a temperature of 300...500°C. After that, the electrical conductivity and mechanical properties of the foil were studied. The studies showed that the 2Cu2Mn alloy retains high mechanical characteristics when exposed to temperatures of 300...400°C due to heat-resistant particles of Al20Cu2Mn3 released during hot rolling. Electrical conductivity during annealing also increases significantly. The best results are achieved with the annealing mode of 400°C, 3 h: 288.7 MPa with a maximum electrical conductivity value of 29.6 MSm/m.

About the authors

A. A. Levagina

Siberian State Industrial University

Author for correspondence.
Email: levagina_aa@sibsiu.ru
ORCID iD: 0000-0002-7270-6008

Junior Researcher

Russian Federation

E. V. Aryshenskii

Siberian State Industrial University

Email: arishenskiy_ev@sibsiu.ru
ORCID iD: 0000-0003-3875-7749

Doctor of Science (Engineering), PhD, Chief Researcher, Research Department

Russian Federation

S. V. Konovalov

Siberian State Industrial University

Email: konovalov@sibsiu.ru
ORCID iD: 0000-0003-4809-8660

Doctor of Science (Engineering), Chief Scientific Officer of the Research Department; Vice-Rector for Scientific and Innovative Activities

Russian Federation

N. O. Korotkova

MISIS National Research Technological University

Email: kruglova.natalie@gmail.com
ORCID iD: 0000-0003-1183-2905

Candidate of Science (Engineering), Junior Researcher, Laboratory of Hybrid Nano-structured Materials

Russian Federation

M. S. Tepterev

Samara National Research University

Email: tepterev.ms@ssau.ru
ORCID iD: 0000-0002-9018-1188

Candidate of Science (Engineering), Senior Researcher, ONIL-4

Russian Federation

S. A. Borminsky

Samara National Research University

Email: borminskiy.sa@ssau.ru
ORCID iD: 0009-0006-8344-5735

Candidate of Science (Engineering), Associate Professor, Associate Professor of the Department of Electrical Engineering

Russian Federation

References

  1. Protatskaya A.A., Vagapov A.R., Iskandarov R.O. Comparison of dry and oil transformers. Nauka Sredi Nas. 2018. No. 1 (5). P. 114-118. (In Russ.)
  2. Gerasimova L.S., Deynega I.A., Pshenichnyy G.I., Chechelyuk Ya.Z. Tekhnologiya i mekhanizatsiya proizvodstva obmotok i izolyatsii silovykh transformatorov [Technology and mechanization of production of windings and insulation of power transformers]. Moscow: Energiya Publ., 1979. 336 p.
  3. GOST 13726-97. Aluminium and aluminium alloys strips. Specifications. Moscow: Standartinform Publ., 2015. 23 p. (In Russ.)
  4. GOST 618-2014. Aluminium foil for technical purposes. Specifications. Moscow: Standartinform Publ., 2015. 15 p. (In Russ.)
  5. Korotkova N.O., Shurkin P.K., Cherkasov S.O., Aksenov A.A. Effect of copper concentration and annealing temperature on the structure and mechanical properties of ingots and cold-rolled sheets of Al-2% Mn alloy. Russian Journal of Non-Ferrous Metals. 2022. V. 63, Iss. 2. P. 190-200. doi: 10.3103/S1067821222020080
  6. Belov N.A., Akopyan T.K., Shurkin P.K., Korotkova N.O. Comparative analysis of structure evolution and thermal stability of commercial AA2219 and model Al-2 wt% Mn-2 wt% Cu cold rolled alloys. Journal of Alloys and Compounds. 2021. V. 864. doi: 10.1016/j.jallcom.2021.158823
  7. Belov N.A., Korotkova N.O., Shurkin P.K., Aksenov A.A. Substantiation of the copper concentration in thermally stable wrought aluminum alloys containing 2 WT % of Mn. Physics of Metals and Metallography. 2020. V. 121, Iss. 12. P. 1211-1219. doi: 10.1134/S0031918X20120030
  8. Belov N.A., Korotkova N.O., Akopyan T.K., Pesin A.M. Phase composition and mechanical properties of Al-1.5% Cu-1.5% Mn-0.35% Zr (Fe, Si) wire alloy. Journal of Alloys and Compounds. 2019. V. 782. P. 735-746. doi: 10.1016/j.jallcom.2018.12.240
  9. Belov N., Akopyan T., Tsydenov K., Cherkasov S., Avxentieva N. Effect of Fe-bearing phases on the mechanical properties and fracture mechanism of Al-2wt.% Cu-1.5wt.% Mn (Mg, Zn) non-heat treatable sheet alloy. Metals. 2023. V. 13, Iss. 11. doi: 10.3390/met13111911
  10. Belov N., Korotkova, N., Akopyan, T., Tsydenov, K. Simultaneous increase of electrical conductivity and hardness of Al-1.5 wt.% Mn alloy by addition of 1.5 wt.% Cu and 0.5 wt.% Zr. Metals. 2019. V. 9, Iss. 12. doi: 10.3390/met9121246
  11. Belov N.A. Substantiation of the composition and structure of deformable alloys based on the Al-Cu-Mn (Zr) system that do not require homogenization and quenching. Proccedings of the International Conference «MashTech 2022. Innovative Technologies, Equipment and Materials for Blanking Productions in Mechanical Engineering» (May, 24-26, 2022, Moscow). Moscow: BMSTU Publ., 2022. P. 10-13. (In Russ.)
  12. Belov N.A., Akopyan T.K., Korotkova N.O., Timofeev V.N., Shurkin P.K. Effect of cold rolling and annealing temperature on structure, hardness and electrical conductivity of rapidly solidified alloy of Al-Cu-Mn-Zr system. Materials Letters. 2021. V. 300. doi: 10.1016/j.matlet.2021.130199
  13. Belov N., Akopyan T., Tsydenov K., Letyagin N., Fortuna A. Structure evolution and mechanical properties of sheet Al-2Cu-1.5 Mn-1Mg-1Zn (wt.%) alloy designed for Al20Cu2Mn3 disperoids. Metals. 2023. V. 13, Iss. 8. doi: 10.3390/met13081442

Supplementary files

Supplementary Files
Action
1. JATS XML
Download

Copyright (c) 2025 VESTNIK of Samara University. Aerospace and Mechanical Engineering

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Согласие на обработку персональных данных

 

Используя сайт https://journals.rcsi.science, я (далее – «Пользователь» или «Субъект персональных данных») даю согласие на обработку персональных данных на этом сайте (текст Согласия) и на обработку персональных данных с помощью сервиса «Яндекс.Метрика» (текст Согласия).