Hamadi F.,Laser Material Processing Group |
Amara E.H.,Laser Material Processing Group |
Bennaceur-Doumaz D.,Laser Material Processing Group |
Boutaka R.,University of Science and Technology Houari Boumediene |
And 4 more authors.
Defect and Diffusion Forum | Year: 2013
In this paper, we study the oxidation process during the heating of a titanium metallic surface by a Nd-YAG fiber pulsed laser beam under air environment. For this, we adopted an approach that considers a three-dimensional heat diffusion model coupled with an oxidation parabolic law (oxidation kinetics). The heat diffusion equation solved numerically, gives the temperature field. The oxide film growth is simulated by implementing a dynamic mesh technique. We developed computational procedures UDFs (User Defined Function) running interactively with the Fluent fluid dynamics software  that implements the finite volume method. These UDFs are developed to insert the oxidation law, the temperature field, the specific boundary conditions and the mesh deformation into the calculation. © (2013) Trans Tech Publications, Switzerland.