Microstructure and Wear Behavior of FeBSiNbCr Metallic Glass Coatings
Xiubing Liang,Binshi Xu,Yixiong Wu
Journal of Materials Sciences & Technology (J. Mater. Sci. Technol.)
abstract
In this paper, FeBSiNbCr metallic glass coatings were prepared onto AISI 1045 steel substrate by using wire arc spraying process. The phase and structure of the coating were characterized by transmission electron microscopy (TEM), X-ray diraction (XRD) and scanning election microscopy (SEM) equipped with energy dispersive X-ray analysis (EDX). The microstructure of the coating consists of full amorphous phase. The coating has high hardness and low porosity. Full density and little oxides are detected in the coating. The mechanical properties, especially wear resistance, were investigated. The relationship between wear behavior and structure of the coatings were analyzed in detail. The main failure mechanism of the metallic glass coating is brittle breaking and fracture. The results indicate that FeBSiNbCr metallic glass coating has excellent resistance to abrasive wear.
keywords:Metallic glass; Coatings; Microstructure; Wear resistance
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