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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1997, Vol. 18 ›› Issue (2): 248-251.

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EXPERIMENTAL STUDY ON SURFACE STRENGTHENING OF ALUMINUM ALLOY BY LASER SHOCKING

Zhang Hong1, Tang Yaxin1, Yu Chengye1, Zhang Yongkang2, Guo Dahao3, Wu Hongxing3   

  1. 1. Faculty 502, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016;2. Institute of Acoustics, Nanjing University, Nanjing, 210008;3. High Power Laser Physics Laser Physics La boratory, China University of Science and Technology, Hefei, 230026
  • Received:1996-01-16 Revised:1996-04-25 Online:1997-04-25 Published:1997-04-25

Abstract:

Laser shock processing (LSP) is a new technology for strengthening materials. This paper investigates LSP used as a method to improve the fatigue life of aluminum alloys. The key technology of LSP is studied. The effects of LSP on the fatigue life of aluminum alloy are also researched. The results show that the fatigue life of aluminum alloy treated by optimized LSP parameterscan be increased significantly.

Key words: laser shock processing, fatigue life, aluminum alloys

CLC Number: