Effects of Crystallization on the Corrosion Resistance of Arc-Sprayed FeBSiNb Coatings

FeBSiNb coatings with a primarily glassy structure were prepared by arc spray processing. The as-sprayed coating was devitrified at various annealing temperatures to form different portions of crystalline phase. The effect of crystallization on the corrosion resistance of the coatings was systematic...

Full description

Saved in:
Bibliographic Details
Published in:Journal of thermal spray technology 2014-02, Vol.23 (3), p.373-379
Main Authors: Cheng, J. B., Liang, X. B., Xu, B. S.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Applied sciences
Characterization and Evaluation of Materials
Chemistry and Materials Science
Corrosion
Corrosion and Coatings
Corrosion environments
Exact sciences and technology
Machines
Manufacturing
Materials Science
Metals. Metallurgy
Peer Reviewed
Processes
Production techniques
Surface treatment
Surfaces and Interfaces
Thin Films
Tribology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:FeBSiNb coatings with a primarily glassy structure were prepared by arc spray processing. The as-sprayed coating was devitrified at various annealing temperatures to form different portions of crystalline phase. The effect of crystallization on the corrosion resistance of the coatings was systematically studied by potentiodynamic polarization and electrochemical impedance spectroscopy analysis in 3.5 wt.% NaCl solution. The results indicate that the as-sprayed coatings exhibit a superior corrosion resistance to the crystallized coatings with high polarization resistance, and the corrosion resistance of the coating deteriorates with the increase in the amount of crystalline phase. The corrosion resistance of both as-sprayed and devitrified coatings is explained in terms of chemical and structural characteristics of the alloys.
ISSN:1059-9630
1544-1016
DOI:10.1007/s11666-013-9990-z