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GAVENDOVÁ, P. ČÍŽEK, J. ČUPERA, J. HASEGAWA, M. DLOUHÝ, I.
Original Title
Microstructure modification of CGDS and HVOF sprayed CoNiCrAlY bond coat remelted by electron beam
Type
abstract
Language
English
Original Abstract
In the present work two techniques are combined to optimise bond coat properties before TBC application, the cold gas dynamic spraying (CGDS) and electron beam remelting (EB). Results of the work focused on comparison of HVOF and CGDS CoNiCrAlY bond coats are firstly presented. Than the effect of the electron beam remelting of the CoNiCrAlY coating manufactured by HVOF and CGDS deposition techniques is deeply investigated. Scanning electron microscopy, light microscopy, and, in addition, X-Ray diffraction techniques were performed to characterize the phase modification and microstructure composition changes before and after the treatment. The microstructural and phase analyses have been supported by microhardness and nanohardness investigation and other necessary supporting techniques.
Keywords
CoNiCrAlY, bond coat, thermal spray, electron beam remelting, thermal barrier coating
Authors
GAVENDOVÁ, P.; ČÍŽEK, J.; ČUPERA, J.; HASEGAWA, M.; DLOUHÝ, I.
Released
8. 9. 2014
Publisher
Vydavatelství VŠB-TU Ostrava
Location
Ostrava
ISBN
978-80-248-3488-7
Book
New Methods of Damage and Failure Analysis of Structural Parts
Edition
VŠB-TU Ostrava
Edition number
1
Pages from
119
Pages to
120
Pages count
2
BibTex
@misc{BUT120621, author="Petra {Krajňáková} and Jan {Čížek} and Jan {Čupera} and Makoto {Hasegawa} and Ivo {Dlouhý}", title="Microstructure modification of CGDS and HVOF sprayed CoNiCrAlY bond coat remelted by electron beam", booktitle="New Methods of Damage and Failure Analysis of Structural Parts", year="2014", series="VŠB-TU Ostrava", edition="1", pages="119--120", publisher="Vydavatelství VŠB-TU Ostrava", address="Ostrava", isbn="978-80-248-3488-7", note="abstract" }