Both creep and corrosion resistances are significant problems in the applic
ation of magnesium alloys. The synergistic effect of corrosion and stress o
n the viscoelasticity of magnesium alloys named corrosion creep has been st
udied in die-cast AZ91D (Mg-9%Al-1%Zn) and AM50 (Mg-5% Al-0.4% Mn) alloys i
n air and in the berate buffer solution. The highest sensitivity to creep i
n the corrosive environment is observed in the alloy with the highest Al co
ntent. An electrochemical study under a tensile strain demonstrates a good
correlation with corrosion creep tests. (C) 2001 Elsevier Science B.V. All
rights reserved.