High resolution microstructure characterization of the interface between cold sprayed Al coating and Mg alloy substrate

Wang, Qiang, Qiu, Dong, Xiong,Yuming, Birbilis, Nick and Zhang, Ming-Xing (2014) High resolution microstructure characterization of the interface between cold sprayed Al coating and Mg alloy substrate. Applied Surface Science, 289 366-369. doi:10.1016/j.apsusc.2013.10.168


Author Wang, Qiang
Qiu, Dong
Xiong,Yuming
Birbilis, Nick
Zhang, Ming-Xing
Title High resolution microstructure characterization of the interface between cold sprayed Al coating and Mg alloy substrate
Journal name Applied Surface Science   Check publisher's open access policy
ISSN 0169-4332
1873-5584
Publication date 2014-01-15
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.apsusc.2013.10.168
Open Access Status Not Open Access
Volume 289
Start page 366
End page 369
Total pages 4
Place of publication Amsterdam, Netherlands
Publisher Elsevier North-Holland
Language eng
Subject 2508 Surfaces, Coatings and Films
Formatted abstract
Highlights
• Intimate atomic bonding between coating and substrate is observed.
• Particle impact results in nanostructured layers at substrate surface.
• Amorphous zones are observed at the periphery region of interface.

High-resolution transmission electron microscopy (HR-TEM) has validated the intimate metallurgical (atomic) bond formed along the interface of a cold-sprayed Al coating upon an Mg-alloy (AZ91) substrate. The compressive impact led to the formation of nanostructured layers of about 300–500 nm into the substrate. A highly distorted lattice structure with the inclusion of small amorphous zones was observed at the periphery of the particle/substrate interface, as a result of adiabatic shear plastic deformation at a high strain rate.
Keyword Bonding mechanism
Cold spray
Interface structure
Surface coating
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 5 November 2013

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2014 Collection
 
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