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Hanjiang Yu,Tianya Tan,Wei Wu,Chao Tian,Ying An,Fengjiu Sun 한국물리학회 2012 Current Applied Physics Vol.12 No.1
Titanium samples were treated by the mixing technology with laser and plasma (LPN) using different laser power densities. These nitrided samples were then annealed at 473 K, 673 K, 873 K, and 1073 K for 2 h in vacuum, respectively. The samples before and after annealing were characterized at room temperature and compared in terms of microstructure. X-ray diffraction and cross-sectional optical microscopy studies showed that the layer structure of the titanium nitride coating is preserved after annealing at 1073 K when the coating is formed using a laser power density of 8.0 105 W/cm2. Therefore, titanium nitride coatings produced by LPN demonstrate excellent thermal stability and are potential candidates for high temperature tribological applications. Titanium samples were treated by the mixing technology with laser and plasma (LPN) using different laser power densities. These nitrided samples were then annealed at 473 K, 673 K, 873 K, and 1073 K for 2 h in vacuum, respectively. The samples before and after annealing were characterized at room temperature and compared in terms of microstructure. X-ray diffraction and cross-sectional optical microscopy studies showed that the layer structure of the titanium nitride coating is preserved after annealing at 1073 K when the coating is formed using a laser power density of 8.0 105 W/cm2. Therefore, titanium nitride coatings produced by LPN demonstrate excellent thermal stability and are potential candidates for high temperature tribological applications.