Microstructure and Wear Behavior of Thermally Sprayed Fe-Based Amorphous Coating

Abstract

In this study, microstructure and wear behavior of thermally sprayed Fe-based alloy coatings were investigated. Fe-based alloy coatings were formed on a carbon steel substrate and then heat-treated at temperature of 700 oC for 20 minutes. Dry sliding wear tests were performed using the sliding speeds of 0.4 and 0.8 m/s, the applied loads of 3 and 6 N. Microstructure and wear behavior of as-sprayed and heat-treated Fe-based amorphous coatings were studied using a scanning electron microscope(SEM), transmission electron microscopy(TEM) and X-ray diffraction(XRD).

Advanced Plasma Spray Applications

“…Synthesizing amorphous and/or nanocrystalline layers on metal substrates can be utilized to improve surface performance such as wear and corrosion resistance (Kim et al;2007). Greer et al reported that amorphous alloys can have very good resistance to sliding and abrasive wear and the coatings can have low friction coefficient (Greer et al;.…”

Utilization of mechanically alloyed powders for surface protective coating

“…It is assumed that the kinetic energy of the particles with high contact pressure promotes bonding with the substrate surface and develops the coating formation [12]. It is assumed that the kinetic energy of the particles with high contact pressure promotes bonding with the substrate surface and develops the coating formation [12].…”