SEM-EDX analysis of laser surface alloying on aluminum

Noriah Bidin, Mundzir Abdullah, Mohd Syafik Shaharin, Yusef Abdul Alwafi, Dwi Gustiono Riban, Moh Yasin

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)53-60
Number of pages8
JournalITB Journal of Science
Volume45 A
Issue number1
Publication statusPublished - 2013


  • Chemical composition
  • Fe-Cu powder
  • Intermetallics phase
  • Laser alloying
  • Microstructure


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