Open AccessBending Behavior of HVOF Produced WC-17Co Coating: Investigated by Acoustic Emission
Author(s) -
S. Bouaricha,
J.-G. Legoux,
Pier-Luc Marcoux
Publication year - 2004
Publication title -
journal of thermal spray technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 84
eISSN - 1544-1016
pISSN - 1059-9630
DOI - 10.1361/10599630419328
Subject(s) - thermal spraying , materials science , acoustic emission , coating , spall , bending , composite material , three point flexural test , microstructure , fracture toughness , tension (geology) , compression (physics) , forensic engineering , metallurgy , engineering
A four-point bend test using acoustic emission (AE) was used to compare coating properties under mechanical solicitation, mainly the toughness and spalling behavior. Coatings are made from the same material; Sulzer-Metco (Westbury, NY) 2005NS (WC-17Co) sprayed with an HVOF gun with different spray parameters. Coatings deposited on thin rectangular substrates were first bent in tension then in compression. AE features like the event number, energy per event, and cumulative energy were used to assess the damages in the coatings. The results are analyzed in relation to the coating microstructure.Peer reviewed: YesNRC publication: Ye
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