Publication detail
Effect of heat treatment on the Al+Si Diffusion coatings on Ni - based alloys
ČELKO, L. KLAKURKOVÁ, L.
Czech title
Effect of heat treatment on the Al+Si Diffusion coatings on Ni - based alloys
English title
Effect of heat treatment on the Al+Si Diffusion coatings on Ni - based alloys
Type
journal article - other
Language
en
Original abstract
The nickel based alloys surface structure stability are recently ensured by use of many types of protective coatings. One of this types of coatings are diffusion ones. These coatings are based on saturation of Ni-based substrates with elements Al, Cr, Si or their combinations. This can lead to an improvement of the oxidation, corrosion and wear resistance of nickel based alloys surfaces. This papers deals with preparation of Al+Si diffusion coatings on the nickel based substrates from slurries annealed at 1000oC. The phase transformations and element interactions were studied. As a substrate, Ni of commercial purity, Ni20Cr and Inconel 713LC alloys were used. During annealing, the elements from coating intgeract with the substrate while forming intermetallic protective layer and an interaction zone between the protective layer and substrate. For this study the light microscopy, scanning electron microscopy, energy dispersive microanalyses, microhardness measurements and image analysis methods were used.
Czech abstract
The nickel based alloys surface structure stability are recently ensured by use of many types of protective coatings. One of this types of coatings are diffusion ones. These coatings are based on saturation of Ni-based substrates with elements Al, Cr, Si or their combinations. This can lead to an improvement of the oxidation, corrosion and wear resistance of nickel based alloys surfaces. This papers deals with preparation of Al+Si diffusion coatings on the nickel based substrates from slurries annealed at 1000oC. The phase transformations and element interactions were studied. As a substrate, Ni of commercial purity, Ni20Cr and Inconel 713LC alloys were used. During annealing, the elements from coating intgeract with the substrate while forming intermetallic protective layer and an interaction zone between the protective layer and substrate. For this study the light microscopy, scanning electron microscopy, energy dispersive microanalyses, microhardness measurements and image analysis methods were used.
English abstract
The nickel based alloys surface structure stability are recently ensured by use of many types of protective coatings. One of this types of coatings are diffusion ones. These coatings are based on saturation of Ni-based substrates with elements Al, Cr, Si or their combinations. This can lead to an improvement of the oxidation, corrosion and wear resistance of nickel based alloys surfaces. This papers deals with preparation of Al+Si diffusion coatings on the nickel based substrates from slurries annealed at 1000oC. The phase transformations and element interactions were studied. As a substrate, Ni of commercial purity, Ni20Cr and Inconel 713LC alloys were used. During annealing, the elements from coating intgeract with the substrate while forming intermetallic protective layer and an interaction zone between the protective layer and substrate. For this study the light microscopy, scanning electron microscopy, energy dispersive microanalyses, microhardness measurements and image analysis methods were used.
Keywords in Czech
diffusion coatings; aluminides NiAl; Ni3Al Diffusion; Heat treatment; EDS analyses
Keywords in English
diffusion coatings; aluminides NiAl; Ni3Al Diffusion; Heat treatment; EDS analyses
RIV year
2008
Released
09.09.2008
Publisher
Brno University of Technology, Faculty of Chemistry
Location
Brno
ISSN
0009-2770
Journal
Chemické listy
Volume
102
Number
S
Pages from–to
869–870
Pages count
2
BIBTEX
@article{BUT47329,
author="Ladislav {Čelko} and Lenka {Klakurková},
title="Effect of heat treatment on the Al+Si Diffusion coatings on Ni – based alloys",
journal="Chemické listy",
year="2008",
volume="102",
number="S",
month="September",
pages="869--870",
publisher="Brno University of Technology, Faculty of Chemistry",
address="Brno",
issn="0009-2770"
}