Metallurgical bonding between metal matrix and core-shelled reinforcements in cold sprayed composite coating

0521662 - ÚFP 2020 RIV US eng J - Journal Article
Yin, S. - Čížek, Jan - Chen, C. - Jenkins, R. - O'Donnell, G. - Lupoi, R.
Metallurgical bonding between metal matrix and core-shelled reinforcements in cold sprayed composite coating.
Scripta Materialia. Roč. 177, March (2020), s. 49-53. ISSN 1359-6462. E-ISSN 1872-8456
R&D Projects: GA ČR(CZ) GA17-13573S
Institutional support: RVO:61389021
Keywords : Bonding mechanism * Cold spray (kinetic spray) * Intermetallic phase * Tensile strength * Transmission electron microscopy (TEM)
OECD category: Materials engineering
Impact factor: 5.611, year: 2020
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S1359646219305573?via%3Dihub

The cohesion mechanism of cold sprayed metal matrix composite coating reinforced with core-shell-structured particles was studied. Al and Cu-Ni-coated diamond were used as the matrix and the reinforcement, respectively. The two components were found metallurgically bonded as evidenced by a formation of CuAl2 layer at the interface. Owing to this enhanced matrix-reinforcement bonding, the core-shelled diamond particles delivered superior deposition (i.e., higher diamond deposition efficiency, higher diamond content, better fracture resistance) than conventional uncoated diamond particles. Despite the metallurgical bonding, the coating cohesion strength was not improved, with the limiting factor likely being insufficient cohesion of the core-shelled diamonds.
Permanent Link: http://hdl.handle.net/11104/0306254