Influence of cyclic heating on properties of PEO coatings on Ti-18Zr-15Nb alloy in UFG state

Authors

  • Zaynullina Liliya Ilgizovna Ufa University of Science and Technology
  • Sharipov Ilgiz Zufarovich Уфимский университет науки и технологий
  • Gunderov Dmitry Valerievich Ufa University of Science and Technology
  • Farrakhov Ruzil Galievich Ufa University of Science and Technology
  • Parfenov Evgeny Vladimirovich Ufa University of Science and Technology

Keywords:

plasma electrolytic oxidation, Ti–Zr–Nb alloys, biocompatible coatings

Abstract

In this article, the temperature dependence of the Ti-18Zr-15Nb alloy dilatation in the ultrafine-grained (UFG) state obtained by equal-channel angular pressing (ECAP) and coated using the plasma-electrolytic oxidation (PEO) method was investigated. The stability of the formed PEO coatings to heating and cooling has also been determined. The results showed that a sharp increase in the thermal expansion coefficient (TEC) in the 350°C temperature range indicates the presence of a phase transformation. During the tests, the porous coating on the Ti-18Zr-15Nb alloy is preserved, but the cracks become more intense and extended

Author Biographies

Zaynullina Liliya Ilgizovna, Ufa University of Science and Technology

Ph.D. tech. Sciences, Senior Lecturer at the Department of Materials Science and Metal Physics, Ufa University of Science and Technology, Ufa

Sharipov Ilgiz Zufarovich, Уфимский университет науки и технологий

Ph.D. physics and mathematics Sciences, Associate Professor of the Department of Materials Science and Metal Physics, Ufa University of Science and Technology, Ufa

Gunderov Dmitry Valerievich, Ufa University of Science and Technology

Doctor of Physics and Mathematics Sciences, leading researcher at the Laboratory of Solid State Physics, Institute of Molecule and Crystal Physics, Ufa Federal Research Center RAS, Ufa University of Science and Technology, Ufa, Russia

Farrakhov Ruzil Galievich, Ufa University of Science and Technology

Ph.D. tech. Sciences, Associate Professor at the Department of Electronic Engineering, Ufa University of Science and Technology, Ufa, Russia

Parfenov Evgeny Vladimirovich, Ufa University of Science and Technology

Dr. Tech. sciences, Head of the Department of Materials Science and Metal Physics, Ufa University of Science and Technology, Ufa, Russia

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Published

2023-10-10

Issue

Vol. 27 No. 3 (101) (2023)

Section

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