Title of article
Broad-beam laser cladding of Al–Cu alloy coating on AZ91HP magnesium alloy
Author/Authors
Yali Gao، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
6
From page
4917
To page
4922
Abstract
The resistance to wear and corrosion of AZ91HP Mg alloy was improved by laser cladding Al–Cu alloy. It was found that the clad layer was
characterized by AlCu4 and Mg17Al12 grains embedded in a AlMg matrix. The bonding zone exhibited a white-light planar crystal band with
thickness of 10–13 mm. The heat-affected zone formed a eutectic structure due to the Mg diffusion. The microhardness and wear resistance of the
coating were improved due to the formation of the hard phases AlCu4 and Mg17Al12. Owing to the formation of dense Al2O3 oxide film, the coating
exhibited better corrosion resistance in 3.5 wt.% NaCl solution
Keywords
Magnesium alloy , Al–Cu alloy , Property , Microstructure , Laser cladding
Journal title
Applied Surface Science
Serial Year
2007
Journal title
Applied Surface Science
Record number
1003585
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