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

0521662 - ÚFP 2020 RIV US eng J - Článek v odborném periodiku
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
Grant CEP: GA ČR(CZ) GA17-13573S
Institucionální podpora: RVO:61389021
Klíčová slova: Bonding mechanism * Cold spray (kinetic spray) * Intermetallic phase * Tensile strength * Transmission electron microscopy (TEM)
Obor OECD: Materials engineering
Impakt faktor: 5.611, rok: 2020
Způsob publikování: Omezený přístup
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.
Trvalý link: http://hdl.handle.net/11104/0306254