Physical model and numerical simulation of intense pulsed electron beam surface modification

qin ying; wu ai-min; zou jian-xin; hao sheng-zhi; liu yue; wang xiao-gang; dong chuang

Volume 15 Issue 07

Jul. 2003

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qin ying, wu ai-min, zou jian-xin, et al. Physical model and numerical simulation of intense pulsed electron beam surface modification[J]. High Power Laser and Particle Beams, 2003, 15.

Citation:

qin ying, wu ai-min, zou jian-xin, et al. Physical model and numerical simulation of intense pulsed electron beam surface modification[J]. High Power Laser and Particle Beams, 2003, 15.

qin ying, wu ai-min, zou jian-xin, et al. Physical model and numerical simulation of intense pulsed electron beam surface modification[J]. High Power Laser and Particle Beams, 2003, 15.

Citation:

qin ying, wu ai-min, zou jian-xin, et al. Physical model and numerical simulation of intense pulsed electron beam surface modification[J]. High Power Laser and Particle Beams, 2003, 15.

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Physical model and numerical simulation of intense pulsed electron beam surface modification

1.
State Key Laboratory for Materials Modification by Laser,Ion and Electron Beam,Department of Physics,Dalian University of Technology,Dalian 116024,China

Publish Date: 2003-07-15

Abstract

Abstract

A one-dimension temperature and stress model is proposed based on the beam-target interaction process and thermal-elastic theory for the intense pulsed electron beam treatment. The temperature and stress profiles are derived by the numerical simulation. According to the simulation, the melted layer is about 2000nm in depth, the rate of rapid heating and cooling reaches 108～109 K/s, the amplitude of quasi-static thermal stress is about several hundreds MＰa, the vibratory frequency of thermal stress wave is about 10-6~108Hz. The simulation explains satisfactorily the observed experimental phenomena as the surface melting depth and the depth distribution of microhardness.
- intense pulsed electron beams (ipeb),
- numerical simulation,
- thermal stress wave

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