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首页> 外文期刊>Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing >Evaluation of formability and planar anisotropy based on textures in aluminum alloys processed by a shear deforming process
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Evaluation of formability and planar anisotropy based on textures in aluminum alloys processed by a shear deforming process

机译：基于剪切变形工艺的铝合金中织构的可成形性和平面各向异性的评估

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The shear forming of 1050 aluminum alloys was conducted repeatedly via a shear deforming process termed dissimilar channel angular pressing (DCAP), in order to study the effect of the accumulative strain on the formability and planar anisotropy of aluminum alloy sheets. Very high plastic strains (ε_(eff)～ 19) were imparted to the alloys by repeated DCAP (N= 32). The finite element method (FEM) was used to analyze the deformation history during the DCAP. The corresponding texture evolution due to DCAP was simulated using the deformation history extracted from the FEM analysis. Experimental verification of the analytical results was also made. The r-value (Lankford parameter) was calculated from the measured textures using the rate sensitivity model. The effects of the texture evolution due to the multiple passages of DCAP on the formability and planar anisotropy were analyzed based on the measured r- and Δr-values. Herein, we report on the possible production of aluminum alloy sheets having good formability and low planar anisotropy by repeated DCAP.
机译：为了研究累积应变对铝合金薄板成形性和平面各向异性的影响，通过称为异种通道角挤压（DCAP）的剪切变形工艺反复进行了1050铝合金的剪切成型。通过重复的DCAP（N = 32）赋予合金很高的塑性应变（ε_（eff）〜19）。有限元方法（FEM）用于分析DCAP期间的变形历史。使用从有限元分析中提取的变形历史模拟了DCAP导致的相应纹理演变。还对分析结果进行了实验验证。使用速率敏感度模型从测得的纹理中计算出r值（Lankford参数）。基于测得的r和Δr值，分析了由于DCAP的多次通过而导致的纹理演变对可成形性和平面各向异性的影响。本文中，我们报道了通过重复DCAP可能生产出具有良好可成形性和低平面各向异性的铝合金板的方法。

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