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Stanovení vlastností původních a EB-modifikovaných nástřiků deponovaných technologiemi tepelného nanášení pomocí vrypové zkoušky a testování nano-indentací / Determination of properties of as-sprayed and EB-deposited coatings prepared by thermal spray technologies using scratch test and nano-indentation methods

Properties of samples and their coatings may be affected by the electron beam. This paper deals with the analysis of the microstructure, phase and chemical composition and the determination of mechanical characteristics of inconel steel substrate and CoNiCrAlY coatings deposited via different types of thermal spraying (HVOF, cold spray), in combination with modifications by the electron beam technology. During the study it was found that the deposition did not change the chemical composition. Further it was found that the interaction of the electron beam with the material did not change the chemical composition, but there is a change in the structure and a reduction of porosity and surface roughness, resulting in a change of mechanical properties such as decreasing hardness or increase of the modulus of elasticity.

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:231364
Date January 2014
CreatorsCének, Lukáš
ContributorsTkachenko, Serhii, Čížek, Jan
PublisherVysoké učení technické v Brně. Fakulta strojního inženýrství
Source SetsCzech ETDs
LanguageCzech
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/masterThesis
Rightsinfo:eu-repo/semantics/restrictedAccess

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