Detail publikace
Potential of New-Generation Electron Beam Technology in Interface Modification of Cold and HVOF Sprayed MCrAlY Bond Coats
ČÍŽEK, J. 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 WoS
Jazyk
en
Originální abstrakt
Electron 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
interface treatment; localized melting; CoNiCrAlY; bond coat optimization
Vydáno
2016-02-19
Nakladatel
Hindawi Publishing Corporation
ISSN
1687-8434
Ročník
N/A
Číslo
N/A
Strany od–do
1–6
Počet stran
6
BIBTEX
@article{BUT120055,
author="Jan {Čížek} 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",
journal="Advances in Materials Science and Engineering",
year="2016",
volume="N/A",
number="N/A",
pages="1--6",
doi="10.1155/2016/9070468",
issn="1687-8434",
url="http://dx.doi.org/10.1155/2016/9070468"
}