The present invention provides a high
corrosion resistance hot dip galvannealed steel material comprised of a Zn-based hot dip plated steel material achieving both a higher
corrosion resistance of the plated layer itself by the added elements and sacrificial protection of
iron metal by the plated layer or workability free of degradation caused of formation of
intermetallic compounds by added elements, that is, a high
corrosion resistance hot dip Zn plated steel material characterized in that an
alloy plated layer containing Zn: 35
mass % or more, preferably 40
mass % or more, contains a non-
equilibrium phase having a
heat capacity by
differential scanning calorimetry of 1 J / g or more. Furthermore, 5% or more, preferably 50% or more in terms of vol % is an
amorphous phase. The
alloy layer may contain, by
mass %, Mg: 1 to 60% and Al: 0.07 to 59%, may further contain one or more elements selected from Cr, Mn, Fe, Co, Ni, and Cu in a total of 0.1 to 10%, and may in addition contain one or more elements of 0.1 to 10% of La, 0.1 to 10% of Ce, 0.1 to 10% of Ca, 0.1 to 10% of Sn, 0.005 to 2% of P, and 0.02 to 7% of Si.