Abstract
A continuous wave Nd-YAG laser was used to perform laser gas nitriding on titanium. The microstructure, surface composition and structure were investigated by SEM , XRD and XPS. The results showed that a relatively smooth and crack-free nitrided layer was obtained on titanium by laser gas nitriding. Metallurgical bonding between the nitrided layer and Ti substrate was observed. The outmost surface of the nitrided layer was found to be comprised of dendritic TiN, TiNxOy, TiO2 and TiC. Carbon and oxygen contamination were detected on the outmost surface of the sample. The intensity of the TiN dendrite in the nitrided layer decreased with increasing depth.
| Original language | Chinese (Simplified) |
|---|---|
| Pages (from-to) | 3-6+10 |
| Journal | Cailiao Gongcheng/Journal of Materials Engineering |
| Issue number | 4 |
| Publication status | Published - 1 Apr 2004 |
Keywords
- Characteristics
- Laser gas nitriding
- Surface layer
- Titanium
ASJC Scopus subject areas
- Chemical Engineering (miscellaneous)
- Building and Construction
- Metals and Alloys
- Polymers and Plastics