On the possible mechanisms of porosity formation during laser melt injection (LMI) technology

G. Buza, V. Janó, M. Svéda, O. Verezub, Z. Kálazi, G. Kaptay, A. Roósz

Research output: Contribution to journalConference article

11 Citations (Scopus)

Abstract

In the present study the analysis of 5 different mechanisms of porosity formation during laser melt injection (LMI) technology were performed. Experiments were supported by thermodynamic and fluid-flow analysis. Special attention should be paid to i. clean the surface of the substrate, ii. use inert shielding gas, iii. use proper particle size and gas velocity, iv. use proper laser power and laser beam velocity to control bath temperature and v. deoxidize the surface of the added particles.

Original languageEnglish
Pages (from-to)79-84
Number of pages6
JournalMaterials Science Forum
Volume589
DOIs
Publication statusPublished - Dec 1 2008
Event6th Hungarian Conference on Materials Science - Siofok, Hungary
Duration: Oct 14 2007Oct 16 2007

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Keywords

  • Laser
  • Molten metal
  • Porosity
  • Surface alloying

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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