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Microstructu re and wear properties of FeW SiC based composite coating produced with Tungsten inert gas (TIG) surfacing method

S. ISLAK1,* , Ö. ESKİ2, S. BUYTOZ3

Affiliation

  1. Kastamonu University, Cide Rıfat Ilgaz Vocational High School, 37600 Cide-Kastamonu, Turkey
  2. Kastamonu University, Kastamonu Vocational High School, 37100 Kastamonu, Turkey
  3. Firat University, Technology Faculty, Metallurgy and Materials Engineering Department, 23100 Elazig, Turkey

Abstract

In this study, SiC reinforced and FeW based metal matrix composite (MMC) was produced on substrate of AISI 304 stainless steel using tungsten inert gas (TIG) surfacing process. In order to examine the effect of SiC on microstructure, hardness and abrasive wear properties inside FeW matrix, SiC was changed by ratios of 10, 25, and 50% by weight. Phase compound and microstructure of coating layers were examined using X-ray diffractometer (XRD) and scanning electron microscope (SEM). Wear behaviours of samples were evaluated using pin-on disc sliding wear tests. It was found that Fe2C, Cr7C3, W2C carbide and Fe2Si, CrSi2 silica were formed in the microstructure. The studies conducted concluded that FeW-25 wt. % SiC composite coating was the most appropriate combination in terms of hardness and wear performance..

Keywords

TIG coating, Metal-matrix composite, Microstructure, Wear.

Citation

S. ISLAK, Ö. ESKİ, S. BUYTOZ, Microstructu re and wear properties of FeW SiC based composite coating produced with Tungsten inert gas (TIG) surfacing method, Optoelectronics and Advanced Materials - Rapid Communications, 5, 6, June 2011, pp.665-672 (2011).

Submitted at: April 12, 2011

Accepted at: June 9, 2011