Application of computational thermodynamic and kinetic models to laser surface alloying

Authors

S S. Babu, Singapore
S M. Kelly, Oak Ridge National Laboratory
R P. Martukanitz, Pennsylvania State University
M Murugananth, University of WollongongFollow

RIS ID

44938

Publication Details

Babu, S. S., Kelly, S. M., Martukanitz, R. P. & Murugananth, M. (2005). Application of computational thermodynamic and kinetic models to laser surface alloying. AWS annual convention

Abstract

Surface physical and mechanical properties can be tailored to different needs by the laser surface alloying process. These property modifications are made by localized melting of substrate material by laser beams with addition of alloying elements as well as hard particles. Through selection of proper hard particles, modification of underlying microstructure through rapid cooling and controlled alloying addition, one can tailor these surfaces for required properties. However, these processes are developed through extensive experimental trial-anderror methodology. This research shows an alternate design methodology by which these processes can be designed through computational thermodynamic and kinetic models.