Maximizing the Glass Fraction in Iron-Based High Velocity Oxy-Fuel Coatings

Developing iron-based coatings, from glass forming alloys such as SAM2X5, which exhibit outstanding corrosion performance superior to nickel-based alloys, results in particular challenges. This is because the resulting corrosion performance of the coating depends on a complex inter-relationship betw...

Full description

Saved in:
Bibliographic Details
Published in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2009-06, Vol.40 (6), p.1306-1313
Main Authors: Branagan, D.J., Swank, W.D., Meacham, B.E.
Format: Article
Language:English
Subjects:
Alloys
Applied sciences
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Corrosion resistance
Exact sciences and technology
Materials Science
Metallic Materials
Metals. Metallurgy
Nanotechnology
Production techniques
Raw materials
Structural Materials
Surface treatment
Surfaces and Interfaces
Symposium: Iron Based Amorphous Metals: An Important Family of High-Performance Corrosion-Resistant Materials
Thin Films
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:Developing iron-based coatings, from glass forming alloys such as SAM2X5, which exhibit outstanding corrosion performance superior to nickel-based alloys, results in particular challenges. This is because the resulting corrosion performance of the coating depends on a complex inter-relationship between the intrinsic properties including coating chemistry with its resulting protective oxide layer, the extrinsic properties related to the macrostructure with its defects resulting from the spray process, and the microstructure where one key factor is the total level of microstructural refinement achieved. As the microstructural scale is reduced, it becomes increasingly difficult for the electrochemical system to initiate electrochemical attack. Metallic glasses, which can be considered “angstrom” scaled materials, represent the ultimate in microstructural uniformity. In this article, the influence of the feedstock powder structure on the resulting glass content in the coating will be explored, because maximizing the glass percentage is one key factor in improving corrosion performance.
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-008-9581-7