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VACUUM ›› 2021, Vol. 58 ›› Issue (5): 98-103.doi: 10.13385/j.cnki.vacuum.2021.05.18

• Vacuum Metallurgy and Thermal Engineering • Previous Articles     Next Articles

Laser Ablative Characterization of Fire Resistance for the Titanium Alloy Ti6Al4V Surface by Ion Implanted Copper

WANG Yang, ZHANG Gao-hui, WANG Kai, YANG Rong-fei, LI Xiang, SUN Qi-xuan   

  1. College of Sciences, China Jiliang University, Hangzhou 310018, China
  • Received:2020-07-28 Online:2021-09-25 Published:2021-09-23

Abstract: Aiming at the problem that titanium alloys are prone to fire under certain conditions,the fire resistance of titanium alloys was optimized. Ion implanted copper was carried out on the surface of Ti6Al4V, then the surface morphology was observed and analyzed by metallographic microscope, the phase composition of the implantation layer was analyzed by X-ray diffraction,the flame retardancy was studied by femtosecond laser ablation,and the morphology and composition of the ablation area were analyzed by scanning electron microscope. The injection layer containing Ti2Cu alloy phase was formed on the surface of Ti6Al4V, and its microstructure was not significantly changed. Laser ablation of the sample, there is no Cu element in the ablation hole of the Ti6Al4V sample after treatment, Cu element exists in the surrounding area,and the area of ablation stain is reduced from 2.39×104 μm2 to 1.68×104μm2 compared with the untreated Ti6Al4V. It indicates that the injection layer formed by copper injection is very thin and has flame retardant effect. With increase of energy and dose, the flame retardant effect becomes more obvious.

Key words: titanium alloy, ion implantation, copper, fire resistance

CLC Number: 

  • TG146.2+3
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