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本文对国产铝板在冷轧与退火后的极图以及冲盂与拉伸试验中所表现的各向导性进行了研究。试验结果指出,纯铝的冷轧织构确定为(110)[112]+(112)[111],该织构引起在冲盂试验中与轧向成45°方向处出现制耳。经500℃温度下退火后,较强的再结晶织构(100)[001]+(146)[211]与残留的加工缴构(110)[112]+(112)[111]同时并存,在冲盂时制耳由4个与轧向成45°的方向变为6个与靴向成30°,90°方向处出现。当退火温度达600℃时,再结晶织构(100)[001]则显著地增强,制可的数目又减为4个并在与轧向成0°,9°方向处出现。纯铝经冷轧后的表面织构为(100)[011],该织构系经过一过渡层逐渐改变至中心部分的(110)[112]+(112)[111]织构。在测定沿板面不同方向的拉伸性能中,发现经冲盂后制耳的位置一般与板料近似真应力,σ_R,最小的方向相符合。对于纯铝退火后的(146)[211]织构的形成问题也进行了讨论。
In this paper, the domestic aluminum plate in the cold-rolled and annealed pole figure as well as the spittoon and tensile test conducted in the conductance of the study. The experimental results indicate that the cold-rolled texture of pure aluminum is determined as (110) [112] + (112) [111] and this texture results in the formation of ears in the stamping test at 45 ° to the rolling direction. After annealing at 500 ℃, the stronger recrystallized texture (100) [001] + (146) [211] coexists with the remaining processed texture [112] + (112) Ear bars in the red when the ear by 4 and rolled into a 45 ° direction into 6 and boots into a 30 °, 90 ° direction appears. When the annealing temperature reaches 600 ℃, the recrystallization texture (100) [001] is remarkably enhanced, and the number of productions is reduced to 4 and appears in the direction of 0 ° and 9 ° with the rolling direction. The surface texture of pure aluminum after cold rolling is (100) [011]. The texture gradually changes to a (110) [112] + (112) [111] texture through a transition layer. In the determination of the tensile properties along different directions of the board surface, it was found that the location of the otolith through the spittoon generally corresponds to the approximate true stress, σ_R and the minimum direction of the sheet metal. The formation of (146) [211] textures after pure aluminum annealing is also discussed.