| 简介 |
The present invention relates to magnesium-zinc based alloy materials having an excellent high-speed formability at low temperature and a manufacturing method for an alloy plate, characterized by diffusing at low temperature, and thereby activating non-basal slip at low temperature in conformity with lowering the recovery and recrystallization start temperature. Mg-Zn based alloy materials having an excellent high-speed formability of the present invention are characterized by the following alloy composition : zinc (Zn) 3.5 wt% or less, one or two or more elements 1.0 wt% or less selected from the group consisting of ferrous (Fe), scandium (Sc), calcium (Ca), silver (Ag), titanium (Ti), zirconium (Zr), manganese (Mn), silicon (Si), nickel (Ni), strontium (Sr), copper (Cu), aluminum (Al), tin (Sn), rare earth elements or misch metal consisting of rare earth elements, and the remainder magnesium (Mg); and by starting the recovery and recrystallization step at 120-140 ℃ and thus activation of non-basal slip. According to the present invention, production of magnesium alloy plates having an excellent formability at low temperature such as 150 ℃ or less is enabled, and the produced magnesium plates have excellent formability at low temperature due to activation of non-basal slip at low temperature and thus increasing the high-speed formability at low temperature. |
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