Wear Mechanisms of VT-3 Titanium Alloy and Composite Material Based on Double Titanium–Chromium Boride in Fretting Corrosion

  
S.Chuprov
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2012, #05/06
http://www.materials.kiev.ua/article/1033

Abstract

The wear mechanisms of VT-3 titanium alloy and TBKhN composite material in fretting corrosion conditions are studied. It is shown that oxide film formed on the titanium alloy during friction breaks, and wear occurs on the juvenile surface. It leads to seizure and removal of the material surface elements, indicating the adhesive wear mechanism in friction of the titanium alloy. The TBKhN40 composite material is characterized by oxidative wear mechanism. Oxide film with grain-oriented fine structure forms on its surface in the friction process through selective oxidation of the refractory and metal components of the material.


COMPOSITE MATERIAL, FRETTING CORROSION, OXIDE FILM, TITANIUM–CHROMIUM DIBORIDE, WEAR MECHANISM, WEAR RESISTANCE