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Mundzir Abdullah
Advanced Photonic Science Institute, Faculty of Science, University Teknologi Malaysia
Astronomy Chemistry Earth & Planetary Sciences Mathematics Physics

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SEM-EDX Analysis of Laser Surface Alloying on Aluminum Noriah Bidin; Mundzir Abdullah; Mohd Syafik Shaharin; Yusef Abdul Alwafi; Dwi Gustiono Riban; Moh Yasin
Journal of Mathematical and Fundamental Sciences Vol. 45 No. 1 (2013)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2013.45.1.5

Abstract

Microstructure and chemical composition changes on the alloyed aluminum surface were investigated using SEM-EDX analysis. A Q-switched Nd:YAg laser was focused to induce breakdown and plasma formation. The high plasma temperature and the shock wave pressure were responsible for speeding up the laser surface alloying process. The rapid heat and cooling process introduced a non-equilibrium condition causing changes in the microstructure as well as the chemical composition of the alloyed aluminum surface. The remelted layer and molten pools were realized after the aluminum received a power density greater than 5 x 108 Wcm-2. The chemical composition change confirms that the convection process had taken place during the alloying process.
Co-Authors Dwi Gustiono Riban Moh Yasin Mohd Syafik Shaharin Noriah Bidin Yusef Abdul Alwafi