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Journal of Materials Science

, Volume 42, Issue 10, pp 3607–3612 | Cite as

Characterization and wear resistance of laser surface cladding AZ91D alloy with Al + Al2O3

  • Yao Jun
  • G. P. Sun
  • C. Liu
  • S. Q. Jia
  • S. J. Fang
  • S. S. JiaEmail author
Article

Abstract

The laser surface cladding of AZ91D magnesium alloy with Al + Al2O3 powders was investigated. X-ray diffraction (XRD) was used to identify the phases in the laser cladding layer, and the growth morphology of the boundary zone between the laser surface cladding layer and AZ91D substrate was observed by optical microscope and scanning electron microscope (SEM). The elements mapping scanning analysis on the boundary zone were carried out with energy-dispersive spectrum (EDS). The results showed that the distribution of the Al2O3 particles was homogeneous in the laser surface cladding layer; the growth morphology of the boundary zone was found to be in a unique parallel-branching feature. The temperature gradient, the liquidus temperature, the rate of dendrite growth and the rate of pool solidification on the growing fronts affected its formation. Furthermore, compared with the AZ91D substrate, the wear resistance of the laser cladding coatings was improved.

Keywords

Wear Resistance Scanning Speed Volume Wear Laser Surface Laser Cladding 

Notes

Acknowledgements

The work financially supported provided by the Inner Mongolia Educational Department of Science and Technology of China (No. NJ04006) and by Project 985-Automotive Engineering of Jilin University.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Yao Jun
    • 1
    • 2
  • G. P. Sun
    • 1
  • C. Liu
    • 1
  • S. Q. Jia
    • 1
  • S. J. Fang
    • 1
  • S. S. Jia
    • 1
    Email author
  1. 1.Key Laboratory of Automobile Materials of Ministry of Education and Department of Materials Science and EngineeringJilin UniversityChangchunP.R. China
  2. 2.Department of Materials Science and EngineeringInner Mongolia Polytechnic UniversityHuhhotP.R. China

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