Detail publikace
Potential of New-Generation Electron Beam Technology in Interface Modification of Cold and HVOF Sprayed MCrAlY Bond Coats
ČÍŽEK, J. CÉNEK, L. MATĚJKOVÁ, M. KOUŘIL, J. ČUPERA, J. DLOUHÝ, I.
Anglický název
Potential of New-Generation Electron Beam Technology in Interface Modification of Cold and HVOF Sprayed MCrAlY Bond Coats
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
en
Originální abstrakt
lectron beam (EB) technology treatment was carried out on CoNiCrAlY bond coats deposited on Inconel substrates via cold spray and HVOF techniques in dissimilar thicknesses. Such treatment was aimed with regard to the final materials microstructure, composition, surface roughness and the quality of the coating-substrate interface. Following a multiple-step optimization of the processing parameters (such as beam pattern configuration, accelerating voltage, longitudinal speed, multiple beam incidence), two final EB modifications were carried out on both coating types. It was found that the optimized EB treatment could lead to a significant alteration of the interface from a distinctive divide into smooth chemical and structural transition between the materials, significant decrease in surface roughness and porosity, as well as changes in mechanical properties (increase in Young's modulus and decrease in hardness of the coating).
Anglický abstrakt
lectron beam (EB) technology treatment was carried out on CoNiCrAlY bond coats deposited on Inconel substrates via cold spray and HVOF techniques in dissimilar thicknesses. Such treatment was aimed with regard to the final materials microstructure, composition, surface roughness and the quality of the coating-substrate interface. Following a multiple-step optimization of the processing parameters (such as beam pattern configuration, accelerating voltage, longitudinal speed, multiple beam incidence), two final EB modifications were carried out on both coating types. It was found that the optimized EB treatment could lead to a significant alteration of the interface from a distinctive divide into smooth chemical and structural transition between the materials, significant decrease in surface roughness and porosity, as well as changes in mechanical properties (increase in Young's modulus and decrease in hardness of the coating).
Klíčová slova anglicky
EB technology; cold gas dynamic spray; localized remelting; heterogeneous structure nanoindentation
Vydáno
25.07.2016
Nakladatel
Politecnico di Milano
Místo
Milan, Itálie
ISBN
9782123456803
Kniha
Proceedings of SMT30
Strany od–do
1–5
Počet stran
5
BIBTEX
@inproceedings{BUT132303,
author="Jan {Čížek} and Lukáš {Cének} and Michaela {Matějková} and Jan {Kouřil} and Jan {Čupera} and Ivo {Dlouhý},
title="Potential of New-Generation Electron Beam Technology in Interface Modification of Cold and HVOF Sprayed MCrAlY Bond Coats",
booktitle="Proceedings of SMT30",
year="2016",
month="July",
pages="1--5",
publisher="Politecnico di Milano",
address="Milan, Itálie",
isbn="9782123456803"
}