Paper Title:
Modeling of Surface Structure Formation after Laser Irradiation
  Abstract

The Stefan problem in a semi-infinite media under laser irradiation is considered. It is related to the melting and solidification processes, resulting in certain surface structure after the solidification. A simple model, as well as a more sophisticated one is proposed to describe this process. The latter model allows us to calculate the surface profile by solving a system of two nonlinear differential equations, if the shape of the solid-liquid interface is known. It has to be found as a solution of two-phases Stefan problem. The results of example calculations by the fourth-order Runge-Kutta method are presented, assuming that the solid-liquid interface has a parabolic shape. The calculated crossection of the surface structure shows a characteristic cone in the center, in agreement with experimental observations.

  Info
Periodical
Edited by
Arturs Medvids
Pages
90-93
DOI
10.4028/www.scientific.net/AMR.222.90
Citation
J. Kaupuzs, S. E. Guseynov, J. S. Rimshans, A. Medvid', "Modeling of Surface Structure Formation after Laser Irradiation", Advanced Materials Research, Vol. 222, pp. 90-93, 2011
Online since
April 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Thai Nguyen, Liang Chi Zhang
Abstract:This paper presents a temperature-dependent finite element heat transfer model, incorporating a triangular moving heat source and various...
3
Authors: Wen Jing Yao, Nan Wang
Abstract:The Monte Carlo method with EAM potential is applied to simulate the liquid Al-Ce binary alloy system and the thermophysical properties...
1404
Authors: Yan Jin, Zhi Bing Tian
Abstract:Because the dynamic soft reduction of continuous casting process is based on the computation of the solidification end point, using model to...
3936
Authors: Chang Hua Du, Li Meng Yin, Yi Luo, Fang Chen, Hai Jian Zhao
Abstract:A lead-free hypoeutectic solder Sn-0.3Ag-0.68Cu-X with low sliver content was prepared by a new process. By the method of skimming surface...
85
Authors: Zhi Lan Chen, Ren Wei Yang
Chapter 2: Simulation and Engineering Optimization
Abstract:The filling process, solidification process, gasification process and node temperature change of special-shaped stainless steel stirrer via...
479