Structure and Properties of Wear-Resistant Spark-Deposited Coatings Produced with a Titanium Carbide Alloy Anode

Y.Tkachenko,
 
D.Yurchenko,
  
L.P.Isaeva,
  

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, 2013, #05/06
http://www.materials.kiev.ua/article/938

Abstract

This paper examines the phase and structure formation during hot pressing of titanium carbide electrode materials as well as the structurization and properties of spark-deposited coatings on steel substrates. The influence of the operating current used for erosion processing on the phase composition and hardness of the coatings is established. It is shown that the developed electrode materials with a certain composition and structure enable forming electrospark coatings of 100 µm thickness having up to 14 GPa hardness. The mass of the material deposited on a steel substrate is three times higher than that formed using standard titanium carbide material TN20. The wear resistance of the coatings under conditions of abrasive and dry sliding friction is high, which makes it possible to recommend them for protection of steel parts working under conditions of severe wear.


COATING PROPERTY, ELECTRODE MATERIAL, ELECTROSPARK STRENGTHENING, EROSIVE PROPERTIES, WEAR RESISTANCE