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Chinese Journal of High Pressure Physics  > 1992  >  6(4): 297-306 .
ZHANG Ke-Xing, LIU Xu-Fa, LIU Chang-Ling, SUN Cheng-Wei. Effects of Series Sharp Laser Pulse on the Melting and Heat Force of Aluminum Alloy Plates[J]. Chinese Journal of High Pressure Physics, 1992, 6(4): 297-306 . doi: 10.11858/gywlxb.1992.04.009
Citation: ZHANG Ke-Xing, LIU Xu-Fa, LIU Chang-Ling, SUN Cheng-Wei. Effects of Series Sharp Laser Pulse on the Melting and Heat Force of Aluminum Alloy Plates[J]. Chinese Journal of High Pressure Physics, 1992, 6(4): 297-306 . doi: 10.11858/gywlxb.1992.04.009
shu

Effects of Series Sharp Laser Pulse on the Melting and Heat Force of Aluminum Alloy Plates

doi: 10.11858/gywlxb.1992.04.009

  • Southwest Institute of Fluid Physics, Chengdu 610003, China

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  • Corresponding author: ZHANG Ke-Xing
  • Received Date: 27 Jun 1992
  • Rev Recd Date: 31 Aug 1992
  • Publish Date: 05 Dec 1992
    Abstract
  • By use of the metalloscopy and scanning electron microscopy, we have studied the fracture mechanism of aluminum-alloys (LY12CZ and LF6M) plates when irradiated by a quasi-condinuous laser beam with series of sharp pulses. Melt pool formed in the laser radiation region, and many cracks appeared, due to the laser induced thermal stress. The relationship of the thermal stress and crack spreading stress with the incident laser intensity were obtained by this investigation.

     

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