Laser and plasma nitriding of titanium using CW-CO₂ laser in the atmosphere

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• 作者：Hanjiang Yu ; Fengjiu Sun ; Jun Zhang
• 关键词：Laser and plasma nitriding ; Titanium nitrides ; Surface modification
• 刊名：Current Applied Physics
• 出版年：2009
• 出版时间：January 2009
• 年：2009
• 卷：9
• 期：1
• 页码：227-233
• 全文大小：2379 K

文摘

Surface nitriding of the titanium by the mixing technology with laser and plasma (LPN) in atmosphere has been investigated. Comparing with the technique of laser nitriding, we could obtain the titanium nitride at relatively low laser power density and the oxidation was prevented without the chamber. The synthesized layers comprised of titanium nitrides were about 178 μm depth. The effect of the laser power density, scanning velocity, and plasma flow rate on the components consisting of the material of the nitrided layer was studied. X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) were used to reveal the components consisting of the material of the nitrided layer.