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 journalArticle

10 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 - 2008

Fingerprint

Porosity
injection
porosity
Noble Gases
Lasers
Gases
gases
Shielding
fluid flow
lasers
Laser beams
shielding
Flow of fluids
baths
Particle size
Thermodynamics
laser beams
thermodynamics
Substrates
Experiments

Keywords

  • Laser
  • Molten metal
  • Porosity
  • Surface alloying

ASJC Scopus subject areas

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

Cite this

On the possible mechanisms of porosity formation during laser melt injection (LMI) technology. / Buza, G.; Janó, V.; Svéda, M.; Verezub, O.; Kálazi, Z.; Kaptay, G.; Roósz, A.

In: Materials Science Forum, Vol. 589, 2008, p. 79-84.

Research output: Contribution to journalArticle

Buza, G. ; Janó, V. ; Svéda, M. ; Verezub, O. ; Kálazi, Z. ; Kaptay, G. ; Roósz, A. / On the possible mechanisms of porosity formation during laser melt injection (LMI) technology. In: Materials Science Forum. 2008 ; Vol. 589. pp. 79-84.
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