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Thermally sprayed Ni(Cr)–TiB2 coatings using powder produced by self-propagating high temperature synthesis: microstructure and abrasive wear behaviour by A.J Horlock; D.G McCartney; P.H Shipway; J.V Wood is a Engineering article available to read on EtoBox.
What is Thermally sprayed Ni(Cr)–TiB2 coatings using powder produced by self-propagating high temperature synthesis: microstructure and abrasive wear behaviour about?
High velocity oxy-fuel (HVOF) thermal spraying was used to deposit Ni(Cr)-TiB 2 cermet coatings onto steel substrates from a feedstock powder produced by a self-propagating high-temperature synthesis (SHS) reaction. The powder and coating microstructures were investigated by scanning electron microscopy and X-ray diffraction (XRD), whilst dry sand rubber wheel abrasive wear and microhardness tests were performed on the coatings. The SHS reacted powder was found to comprise principally 1-5 mm sized TiB 2 in a crystalline, Ni-based solid solution matrix, with approximately 60 vol.% TiB 2 and 40 vol.% metallic binder. XRD revealed the presence of only around 2% of the following phases: TiB, Ni 2 B, NiTi, TiO. The reacted compact was crushed, ground and classified into a powder of size range ( +8 to -38) mm for thermal spraying. The HVOF sprayed deposits had layered, splat-like morphologies typical of thermally sprayed cermets. The coating microstructure consisted primarily of TiB 2 in the Ni-rich binder phase but the boride fraction was reduced compared to that of the feedstock powder as a result of TiB 2 dissolution in the molten alloy during spraying. XRD analysis of the coating ind
Who reads Thermally sprayed Ni(Cr)–TiB2 coatings using powder produced by self-propagating high temperature synthesis: microstructure and abrasive wear behaviour?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- A.J Horlock; D.G McCartney; P.H Shipway; J.V Wood
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0921-5093)
- Published
- 2002
- Language
- EN
- Field
- Engineering (Physical Sciences)
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