Abstract
A study was conducted to examine the influence of spraying current and gun transverse speed on the characteristics of the hydroxyapatite (HA) and Ti-6Al-4V composite coatings. The mechanical properties of the individual layers were tested using the tensile adhesion test. The surface morphology and microstructure of the composite layers were examined by a backscattered scanning electron microscope. The phase composition and crystallinity were determined by an X-ray diffractometer. The as-sprayed coating of the individual layers was found to possess a higher porosity level in the HA-rich regions. The tensile adhesion test revealed a higher bond strength for the composite coatings compared to that for pure HA coatings. A lower spraying current and a faster gun transverse speed also contributed to the porous microstructure and low bonding strength.
| Original language | English |
|---|---|
| Pages (from-to) | 550-555 |
| Number of pages | 6 |
| Journal | Journal of Materials Processing Technology |
| Volume | 89-90 |
| DOIs | |
| Publication status | Published - May 19 1999 |
| Externally published | Yes |
| Event | Proceedings of the 1999 4th Asia Pacific Conference on Materials Processing - Singapore, Singapore Duration: May 19 1999 → May 20 1999 |
ASJC Scopus Subject Areas
- Ceramics and Composites
- Computer Science Applications
- Metals and Alloys
- Industrial and Manufacturing Engineering