Characterization of Thick Hard Layers with Ni-Cr-B-Fe-Al Alloy Obtained by Laser Cladding

  • Elena DRUGESCU "Dunarea de Jos" University of Galati, Romania
  • Simona BOICIUC "Dunarea de Jos" University of Galati, Romania
  • Constantin GHEORGHIES "Dunarea de Jos" University of Galati, Romania
Keywords: laser cladding, nickel alloy, microstructure, microhardness, difractometry, thermal stability

Abstract

To increase the resistance to wear and corrosion of the surface layers made from steel with 0.45% C, multilayer deposition was tested by injection of powder with chemical composition of 8.9% Cr, 4.5% Fe, 5.1% B, 2, 4% Al, 0.6% Al; the remaining Ni, was melted in the bath with a CO2 laser in continuous wave and coupled to a mass in coordinates x-y-z. To establish the optimum deposition condition, the layers made with different laser regimes were characterized by macro-and microstructural analysis, qualitative analysis of phase with the radiation difractometry X microhardness analysis and determination of hardness on the surface of the deposited layer. Thermal stability of the laser deposited layers and their abrasive wear behavior were monitored.

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References

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Published
2009-05-15
How to Cite
1.
DRUGESCU E, BOICIUC S, GHEORGHIES C. Characterization of Thick Hard Layers with Ni-Cr-B-Fe-Al Alloy Obtained by Laser Cladding. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15May2009 [cited 23Jul.2024];32(1):76-2. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/3071
Section
Articles

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