PULSE CURRENT TREATMENT OF GRADE 5 TITANIUM PLATES AFTER BENDING TO REDUCE SPRINGBACK EFFECT

10.25712/ASTU.1811-1416.2025.03.008

Authors

  • Alina Morkina Ufa University of Science and Technology, Zaki Validi St. 32, 450076, Ufa, Russia https://orcid.org/0000-0002-3989-0376
  • Danila Tarov Ufa University of Science and Technology, Zaki Validi St. 32, 450076, Ufa, Russia https://orcid.org/0009-0009-4539-1248
  • Ramil Lutfullin Institute for Metals Superplasticity Problems, Russian Academy of Sciences, Khalturin St. 39, 450001, Ufa, Russia https://orcid.org/0000-0003-4638-3206
  • Pavel Tatarinov Polytechnic Institute (branch) of Federal State Autonomous Educational Institution of Higher Professional Education «North-Eastern Federal University named after M.K. Ammosov», Tikhonova St. 5, 678170, Mirny, Russia. https://orcid.org/0000-0001-7430-8591
  • Yuri Bebikhov Polytechnic Institute (branch) of Federal State Autonomous Educational Institution of Higher Professional Education «North-Eastern Federal University named after M.K. Ammosov», Tikhonova St. 5, 678170, Mirny, Russia. https://orcid.org/0000-0002-8366-4819
  • Alexander Semenov Polytechnic Institute (branch) of Federal State Autonomous Educational Institution of Higher Professional Education «North-Eastern Federal University named after M.K. Ammosov», Tikhonova St. 5, 678170, Mirny, Russia. https://orcid.org/0000-0001-9940-3915
  • Elena Korznikova Ufa University of Science and Technology, Zaki Validi St. 32, 450076, Ufa, Russia https://orcid.org/0000-0002-5975-4849
  • Sergey Dmitriev nstitute of Molecule and Crystal Physics, Ufa Federal Research Centre of RAS, Oktyabrya Pr., 71, Ufa, 450054, Russia https://orcid.org/0000-0002-6744-4445

Keywords:

springback, bending, grade 5 titanium alloy, current pulse treatment

Abstract

Springback in titanium alloys after bending remains a significant technological challenge in aero-space, medical and other industries. This study investigates the possibility of reducing springback in grade 5 titani-um alloy plates using post-deformation electropulsing treatment. Unlike conventional approaches requiring work-piece heating, the proposed technology involves applying pulsed current through tooling (die and punch), signifi-cantly simplifying the process. Experiments were conducted on samples with thicknesses of 0.77 and 2.1 mm and width of 4 mm at voltages on the capacitor battery of 100-180 V and pulse numbers ranging from 1 to 10. The re-sults demonstrated that for thin plates (0.77 mm), properly selected treatment parameters can completely eliminate springback, while for thicker samples the recovery angle decreases from 107-109.5° to 100°. SEM microstructural analysis revealed that springback reduction is associated with the α→β phase transformation in the plastic defor-mation zone, as well as surface layer enrichment with iron (up to 14-16 wt.%) due to steel punch erosion. The ob-tained results demonstrate the promise of electropulse treatment as a technological method for controlling geometric accuracy of titanium alloy products, combining springback suppression with surface layer chemical modification.

Author Biographies

Alina Morkina, Ufa University of Science and Technology, Zaki Validi St. 32, 450076, Ufa, Russia

Junior Research Associate of the Youth Laboratory “Metals and Alloys under Extreme Impacts” of the Ufa University of Science and Technology, postgraduate student of Institute for Metals Superplasticity Problems RAS

Danila Tarov, Ufa University of Science and Technology, Zaki Validi St. 32, 450076, Ufa, Russia

Research Engineer of the Fash-ion Laboratory “Metals and Alloys under Extreme Impacts” of the Ufa University of Science and Technology.

Ramil Lutfullin, Institute for Metals Superplasticity Problems, Russian Academy of Sciences, Khalturin St. 39, 450001, Ufa, Russia

Doctor of Technical Sciences, Principal Scientist of the Institute for Metals Su-perplasticity Problems of RAS.

Pavel Tatarinov, Polytechnic Institute (branch) of Federal State Autonomous Educational Institution of Higher Professional Education «North-Eastern Federal University named after M.K. Ammosov», Tikhonova St. 5, 678170, Mirny, Russia.

Senior Lecturer, Department of Electric Power Engineering and Industrial Au-tomation, MPTI (branch) of NEFU.

Yuri Bebikhov, Polytechnic Institute (branch) of Federal State Autonomous Educational Institution of Higher Professional Education «North-Eastern Federal University named after M.K. Ammosov», Tikhonova St. 5, 678170, Mirny, Russia.

Doctor of Physical and Mathematical Sciences, Associate Professor, Head of the Department of Electric Power Engineering and Industrial

Alexander Semenov, Polytechnic Institute (branch) of Federal State Autonomous Educational Institution of Higher Professional Education «North-Eastern Federal University named after M.K. Ammosov», Tikhonova St. 5, 678170, Mirny, Russia.

Doctor of Physical and Math-ematical Sciences, Associate Professor, Professor of the Department of Electric Power Engineering and Industrial Automation of MPTI (branch) of NEFU.

Elena Korznikova, Ufa University of Science and Technology, Zaki Validi St. 32, 450076, Ufa, Russia

Doctor of Physical and Mathematical Sciences, Head of the Youth Labora-tory “Metals and Alloys under Extreme Impacts”, Ufa University of Science and Technology.

Sergey Dmitriev, nstitute of Molecule and Crystal Physics, Ufa Federal Research Centre of RAS, Oktyabrya Pr., 71, Ufa, 450054, Russia

Doctor of Physical and Math-ematical Sciences, Professor, Head of Laboratory “Solid State Physics” of the Institute of Molecule and Crystal Physics UFRS of RAS

Downloads

Published

2025-09-30

How to Cite

Morkina А., Tarov Д., Lutfullin Р., Tatarinov П., Bebikhov Ю., Semenov А., Korznikova Е., & Dmitriev С. (2025). PULSE CURRENT TREATMENT OF GRADE 5 TITANIUM PLATES AFTER BENDING TO REDUCE SPRINGBACK EFFECT: 10.25712/ASTU.1811-1416.2025.03.008. Fundamental’nye Problemy Sovremennogo Materialovedenia / Basic Problems of Material Science, 22(3), 324–334. Retrieved from https://ojs.altstu.ru/index.php/fpsm/article/view/1255

Issue

Vol. 22 No. 3 (2025): Basic Problems of Material Science

Section

SECTION 1. CONDENSED MATTER PHYSICS