• Infrared and Laser Engineering
  • Vol. 45, Issue 7, 705003 (2016)
Bian Hongyou1、*, Lei Yang1, Li Ying2, Yang Guang1, Qin Lanyun1, Wang Wei1, and Han Shuanglong1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: 10.3788/irla201645.0705003 Cite this Article
    Bian Hongyou, Lei Yang, Li Ying, Yang Guang, Qin Lanyun, Wang Wei, Han Shuanglong. Effects of induction preheating on microstructure and residual stress of laser deposition repair TA15 titanium alloy[J]. Infrared and Laser Engineering, 2016, 45(7): 705003 Copy Citation Text show less

    Abstract

    Both 6 kW fiber laser deposition repair system and electromagnetic induction heating equipment were utilized, laser deposition repair experiments were respectively done by TA15 titanium powder under substrate without preheating and preheating at 200 ℃ and 400 ℃. Then microstructure, microhardness and residual stress were tested and analyzed through optical microscope, microhardness tester and indentation stress tester, the influence of microstructure, microhardness and residual stress in different substrate preheating temperature on the laser deposition repair sample was achieved. Results show that microstructure of lamella α becomes thicker and primary α grow more fully; microhardness of material is slightly reduced; residual stress is effectively reduced with the increasing of preheating temperature. The guidance basis for laser deposition repair assisted by induction heating is provided.
    Bian Hongyou, Lei Yang, Li Ying, Yang Guang, Qin Lanyun, Wang Wei, Han Shuanglong. Effects of induction preheating on microstructure and residual stress of laser deposition repair TA15 titanium alloy[J]. Infrared and Laser Engineering, 2016, 45(7): 705003
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