LASER ABLATION PERFORMANCE OF DOUBLE GLOW DISCHARGE SPUTTER DEPOSITION MO ON TITANIUM ALLOY SURFACE

Gaohui Zhang, Guoqing Huang, Pinze Zhang, Pen Xu, Gen Li, Mingzhou Yu, Shunqi Zhang
Abstract:
In order to improve the burn-resistant property of titanium alloy, Ti-Mo burn-resistant alloyed layer was coated by permeating the Molybdenum(Mo) into the Ti6Al4V substrate with the double glow plasma surface alloying technology. The experiment was performed at the work temperature of 800° to keep warm for 2.5 hours under the air pressure of 30 Pa, where Molybdenum and Ti6Al4V was used as the source electrode and cathode respectively. The result of X-ray diffraction shows that the alloy phase of Ti and Mo has been formed on the surface of Ti6Al4V substrate. The hardness of the alloyed layer on the surface is more than 800HV, and the wear rate can be reduced by three orders of magnitude according to the friction result. The laser ablation experiment (Modelocked Ti:sapphire Laser, Mai Tai HP) was used to characterize the burn-resistant property of the titanium alloy. The result indicates that the laser burn area of the treated titanium alloy has been reduced to 1/12 of the untreated sample, the burn-resistant property has been extraordinary improved. Furthermore, the current experimental results clearly show that the laser ablation can be used to characterize the the materil burn-resistant property.
Keywords:
double glow discharge, titanium alloy, burn-resistant, laser ablation
Download:
IMEKO-TC2-2010-24.doc
DOI:
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Event details
IMEKO TC:
TC2
Event name:
TC2 Symposium 2010
Title:
19th Symposium on Photonic Measurements
Place:
Hangzhou, CHINA
Time:
11 September 2010 - 13 September 2010