@inproceedings{59cdcc2f073047b5a155b9e6dec0a22c,
title = "Microstructural evaluation of suspension thermally sprayed WC-Co nanocomposite coatings",
abstract = "Microstructural and sliding wear evaluations of nanostructured coatings deposited by Suspension High Velocity Oxy-Fuel (S-HVOF) spraying were conducted in as-sprayed and HIPed (Hot Isostatically Pressed) conditions. S-HVOF coatings were nanostructured via ball milling of the WC-12Co start powder, and deposited via an aqueous based suspension using modified HVOF (TopGun) spraying. Microstructural evaluations of these hardmetal coatings included TEM (Transmission Electron Microscopy), X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). Sliding wear tests were conducted using a ball-on-flat test rig. Results indicated that nanostructured features inherited from the start powder in S-HVOF spraying were retained in the resulting coatings. The decarburisation of WC due to a higher surface area to volume ratio was also observed in the S-HVOF coatings. Nanostructured and amorphous phases caused by the highcooling rates during thermal spraying crystallized into complex eta-phases after the HIPing treatment. Sliding wear performance indicated that the coating wear was lower for the HIPed coatings.",
author = "R. Ahmed and Faisal, \{N. H.\} and O. Ali and Al-Anazi, \{Nayef M.\} and S. Al-Mutairi and S. Mamour and Polychroniadis, \{E. K.\} and Goosen, \{M. F A\}",
year = "2015",
doi = "10.1007/978-3-319-16919-4\_5",
language = "English",
isbn = "9783319169187",
volume = "164",
series = "Springer Proceedings in Physics",
publisher = "Springer",
pages = "31--38",
booktitle = "2nd International Multidisciplinary Microscopy and Microanalysis Congress",
note = "2nd International Multidisciplinary Microscopy and Microanalysis Congress and Exhibition, INTERM 2014 ; Conference date: 16-10-2014 Through 19-10-2014",
}