TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

Structures and properties of laser-assisted cold-sprayed aluminum coatings

Tutkimustuotosvertaisarvioitu

Yksityiskohdat

AlkuperäiskieliEnglanti
OtsikkoTHERMEC 2016
KustantajaTrans Tech Publications Ltd
Sivut984-989
Sivumäärä6
Vuosikerta879
ISBN (painettu)978-3-03-571129-5
DOI - pysyväislinkit
TilaJulkaistu - 2017
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaConference on Processing and Manufacturing of Advanced Materials, THERMEC -
Kesto: 1 tammikuuta 2000 → …

Julkaisusarja

NimiMaterials Science Forum
Vuosikerta879
ISSN (painettu)0255-5476

Conference

ConferenceConference on Processing and Manufacturing of Advanced Materials, THERMEC
Ajanjakso1/01/00 → …

Tiivistelmä

In the cold spray process, solid particles impact on a surface with high kinetic energy, deform plastically and form a coating. This enables the formation of pure and dense coating structures. Even more, coating performance and deposition efficiency can be improved by assisting the process with a laser. Laser-assisted cold spraying (LACS) has shown its potential to improve coating properties compared with traditional cold spraying. In this study, coating quality improvement was obtained by using a co-axial laser spray (COLA) process which offers a new, cost-effective laser-assisted cold spray technique, for high-quality deposition and repair. In the COLA process, the sprayed surface is laser heated while particles hit the surface. This assists thebetter bonding between particles and substrate and leads to the formation of tight coating structures. This study focuses on the evaluation of the microstructural characteristics and mechanical properties (e.g., hardness and bond strength) of LACS metallic coatings.