Temperature Fields on Materials Surface under High-Energy Pulse Laser Irradiation

An experimental invstigation and numerical sdrilations of temperature fields on materials surface under high-energy pulse laser irradiation were described. Through experiments the effect of temperature increasing rate and the temperature profiles on materials surface under laser irradiation were obtained, and with corresponding experimental condition some numerical simulations with two differen heat conduct models were don. By comparing the experimental results and sedation results, When pulse duration of laser is long enough, the experimenta results agree the numerical simulation results based on Fourier' Law With decreasing of pulse duration, the experimental results gradually defer from the numerical simulation results based on Fourier Heat Conduct Model, bu approach simulation results based on Hyperbolic Heat Conduct Model.When pulse duration is short enough, some unconventional phenomena appear, such as "the second heating".