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Corrosion behavior of laser melted AZ91HP magnesium alloy
Author(s) -
Gao Y.,
Wang C.,
Yao M.,
Liu H.
Publication year - 2007
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.200604031
Subject(s) - materials science , metallurgy , alloy , corrosion , magnesium , redistribution (election) , magnesium alloy , layer (electronics) , laser , composite material , optics , physics , politics , political science , law
AZ91HP magnesium alloy was melted by CO 2 laser. Compared with as‐received Mg alloy, the grain of the melted layer was refined significantly and the content of Al was increased. The corrosion resistance of the melted layer was improved because of the grain refinement, the redistribution of β ‐Mg 17 Al 12 and the increasing of the Al content. As compared to the non‐overlapping zone, the overlapping zone of the melted layer was liable to be corroded.