Effect of surface modification of a titanium alloy by copper ions on the structure and properties of the substrate-coating composition

Marina Fedorischeva, Mark Kalashnikov, Irina Bozhko, Olga Perevalova, Victor Sergeev

Research output: Contribution to journalArticlepeer-review

Abstract

To improve the strength properties, adhesion, and the thermal cycling resistance of ceramic coatings, the titanium alloy surface was modified with copper ions under different processing times. It is found that at the maximum processing time, the thickness of the alloyed layer reaches 12 µm. It is shown that the modified layer has a multiphase structure in addition to the main α and β–titanium phases with the intermetallic compounds of the Ti-Cu system. The parameters of the fine structure of the material are investigated by the X-ray diffraction analysis. It has been found that when the surface of the titanium alloy is modified, depletion occurs in the main alloying elements, such as aluminum and vanadium, the crystal lattice parameter increases, the root-mean-square (rms) displacements of the atoms decrease, and the macrostresses of compression arise. A multilevel micro-and nanoporous nanocrystalline structure occurs, which leads to an increase in the adhesion and the thermal cyclic resistance of the ceramic coating based on Si-Al-N.

Original languageEnglish
Article number1591
Pages (from-to)1-10
Number of pages10
JournalMetals
Volume10
Issue number12
DOIs
Publication statusPublished - Dec 2020

Keywords

  • Electron microscopy
  • Elemental distribution
  • Ionic treatment
  • Multiscale structure
  • Phase composition
  • Structure
  • Surface modification
  • X-ray structural analysis

ASJC Scopus subject areas

  • Materials Science(all)

Fingerprint Dive into the research topics of 'Effect of surface modification of a titanium alloy by copper ions on the structure and properties of the substrate-coating composition'. Together they form a unique fingerprint.

Cite this