THE STRUCTURE CHANGE OF THIN LAYERS OF POLYMER COATING AND TITANIUM ALLOY DURING COLD PLASTIC DEFORMATION

  • Валентина Гаврилова Інститут надтвердих матеріалів ім. В.М. Бакуля НАН України
  • Євген Пащенко Інститут надтвердих матеріалів ім. В.М. Бакуля НАН України
  • Сергій Шейкін Інститут надтвердих матеріалів ім. В.М. Бакуля НАН України
  • Світлана Жильцова
  • Ігор Ростоцький Інститут надтвердих матеріалів ім. В.М. Бакуля НАН України
  • Василь Ткач
Keywords: epoxy-polysiloxane nanocomposite, titanium alloy, cold plastic deformation, structure, transition layer

Abstract

A study of the structure and elemental composition of the contact layers of a polymer coating - a titanium alloy before and after cold plastic deformation (CPD) of VT1-0 titanium alloy bushings coated with an epoxy nanocomposite was made. A nanocomposite is an epoxy polymer that has been modified with polysiloxane particles with the addition of a highly dispersed carbon filler. It is shown that in the process of plastic deformation of the coating, fragmentation (crushing) of its grains occurs. Between the titanium alloy and the polymer coating during the CPD process at a contact pressure of up to 2.2 GPa, a transition layer of a thickness of about 3 μm is formed, in which the chemical elements of both the alloy and the polymer coating are identified.

Published
2020-10-08
Issue
Vol 23 No 1 (2020): Tooling materials science
Section
Development and implementation of equipment and tools equipped with hard alloys