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

journal contribution
posted on 2023-11-03, 04:58 authored by Q Wang, D Qiu, Y Xiong, N Birbilis, MX Zhang
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. © 2013 Elsevier B.V.

History

Journal

Applied Surface Science

Volume

289

Pagination

366-369

ISSN

0169-4332

eISSN

1873-5584

Language

English

Publisher

ELSEVIER