首页> 外文OA文献 >Process parameter influence on texture heterogeneity in asymmetric rolling of aluminium sheet alloys
【2h】

Process parameter influence on texture heterogeneity in asymmetric rolling of aluminium sheet alloys

机译:工艺参数对铝合金薄板不对称轧制中织构异质性的影响

摘要

Experimental investigations of asymmetric rolling of sheet alloys demonstrate that this process may be used to alter the crystallographic texture by the introduction of shear components. Such texture components are desirable for their potential to improve the formability of aluminium alloys in deep drawing, because they do not transform to the detrimental cube component after recrystallisation. It is however not precisely known how the process parameters affect the texture evolution and the formation of texture gradients. The results of a parametric finite element study of the deformation field and the texture evolution arising during a single pass of asymmetric cold rolling are presented together with an assessment of the impact of texture gradients on the macroscopic anisotropy determined by multi-scale modelling. The modelling approach is validated with textures measured for a single pass of asymmetric rolling of an aluminium sheet alloy. The study targets an industrially feasible process window and presents the relationships found between shear texture volume fractions, texture heterogeneity, plastic anisotropy and several types of process parameters (geometric, contact and material).
机译:板状合金不对称轧制的实验研究表明,该过程可用于通过引入剪切成分来改变晶体织构。由于它们在深拉伸中改善铝合金的可成形性的潜力,因此它们是理想的,因为它们在重结晶后不会转变成有害的立方组分。然而,尚不清楚工艺参数如何影响纹理演变和纹理梯度的形成。提出了参数场有限元研究变形场和单次非对称冷轧过程中产生的织构演变的结果,并评估了织构梯度对通过多尺度建模确定的宏观各向异性的影响。该建模方法已通过对铝板合金的一次不对称轧制所测量的织构进行了验证。这项研究针对工业上可行的工艺窗口,并提出了剪切织构体积分数,织构异质性,塑性各向异性和几种类型的过程参数(几何,接触和材料)之间的关系。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号