Paper Title:
Effect of Y2O3 Addition on the Microstructure and Corrosion Behaviour of Laser Cladding of Al Powder on ZM5 Magnesium Alloys
  Abstract

The aim of this work was to improve the surface layer properties of the Mg-Al-Zn cast ZM5 magnesium alloys by melting and preplaced Al powder or Al+Y2O3 powder on the surface. Laser processing was carried out using high power continuous wave CO2 laser. The resulting surface layers were examined using metallographic light microscopy, scanning electron microscopy, X-ray diffraction. The corrosion resistance was detected by potendiodynamic polarization test. The morphology of the Al cladding coatings are dendrities. And the coatings have excellent corrosion resistance compared to the untreated ZM5 substrate. The enhanced corrosion resistance coating doped with Y2O3 was attributed to the refined microstructure induced by Y2 O3

  Info
Periodical
Advanced Materials Research (Volumes 314-316)
Chapter
Laser Processing Technology
Edited by
Jian Gao
Pages
1867-1870
DOI
10.4028/www.scientific.net/AMR.314-316.1867
Citation
C. J. Chen, Q. Cao, X. Xu, M. Zhang, "Effect of Y2O3 Addition on the Microstructure and Corrosion Behaviour of Laser Cladding of Al Powder on ZM5 Magnesium Alloys", Advanced Materials Research, Vols. 314-316, pp. 1867-1870, 2011
Online since
August 2011
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Price
$32.00
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