Corrosion behavior aspects of Ni-base self-fluxing coatings

Due to the development of thermal spray deposition technologies, thus obtained layers have more applications and fields of use. One of the coatings with increased application is the one produced from Ni-based self-fluxing alloys, which besides the good wear resistance, shows a satisfactory corrosion...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2016-08, Vol.147 (1), p.12034
Main Authors: Paulin, C, Chicet, D L, Istrate, B, Pan uru, M, Munteanu, C
Format: Article
Language:English
Subjects:
Acid rain
Coatings
Corrosion
Corrosion resistance
Corrosion tests
Corrosive wear
Crack initiation
Fluxing
Heat treatment
Microcracks
Nickel base alloys
Spray deposition
Wear resistance
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Summary:Due to the development of thermal spray deposition technologies, thus obtained layers have more applications and fields of use. One of the coatings with increased application is the one produced from Ni-based self-fluxing alloys, which besides the good wear resistance, shows a satisfactory corrosion resistance. In this study it was observed the behavior of three types of coatings produced by Flame Spray method, both at wear and especially corrosion in the environment simulating acid rain. As a result of the experiments it was found that these layers became compact enough after applying the self-fluxing heat treatment, so in their structure are not present defects such as pores and micro-cracks, unmelted particles etc., which could be points of corrosion initiation.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/147/1/012034