Effect of heat treatment on the wear and corrosion behaviors of a gray cast iron coated with a colmonoy 88 alloy deposited by high velocity oxygen fuel (HVOF) thermal spray

Öz A., Samur R., MİNDİVAN H., DEMİR A., Sagiroglu S., Yakut A.

Metalurgija, vol.52, no.3, pp.368-370, 2013 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 52 Issue: 3
  • Publication Date: 2013
  • Journal Name: Metalurgija
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.368-370
  • Keywords: Corrosion, HVOF, Ni-based coating, Post-heat treatment, Wear
  • Bilecik Şeyh Edebali University Affiliated: No

Abstract

The present work has been conducted in order to determine the influence of heat treatment on the wear and corrosion behaviours of a gray cast iron substrate coated with a Ni base coating deposited by HVOF thermal spray. The wear resistance of the coatings was obtained using a reciprocating wear tester by rubbing a 10 mm diameter steel ball on the coatings at normal atmospheric conditions. Corrosion tests were performed using potentiodynamic polarization measurements in a 3,5 % NaCl solution. It was observed that the corrosion and wear resistance of the coatings increased along with the reduction of porosity and roughness by the heat treatment.