...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Intergranular mechanical equilibrium during the rolling deformation of polycrystalline metals based on Taylor principles
【24h】

Intergranular mechanical equilibrium during the rolling deformation of polycrystalline metals based on Taylor principles

机译：基于泰勒原理的多晶金属轧制变形过程中的晶间力学平衡

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Taylor principles indicate that the Taylor strain tensor is identical to the macroscopic strain tensor during plastic deformation and prevails everywhere inside polycrystalline aggregates, in which real grain behaviors generally differ. These principles have been modified in many deformation models while considering strain and stress equilibria in local areas, e.g., grains, grain pairs or grain clusters. However, the Taylor strain tensor is still valid in the surrounding matrix of local areas. In this paper, a reaction stress model based on intergranular mechanical interactions is proposed for rolling deformation caused by penetrating slips and additional local slips while keeping reaction shear stresses below certain top limits. Both stress and strain equilibria are reached in entire rolling sheets in the model, and the same Taylor texture is predicted without the Taylor strain tensor anywhere inside the polycrystalline matrix, regardless if the isotropic matrix is rigid or elastic. Rolling-texture formation in experimental polycrystalline metals could be simulated based on the model if the relaxation effects of additional slips on reducing the top limits of reaction shear stresses are included.
机译：泰勒原理表明，泰勒应变张量与塑性变形过程中的宏观应变张量相同，并且在多晶骨料内部普遍存在，其中实际晶粒行为通常不同。这些原理已在许多变形模型中进行了修改，同时考虑了局部区域（例如晶粒，晶粒对或晶粒簇）的应变和应力平衡。但是，泰勒应变张量在局部区域的周围矩阵中仍然有效。本文提出了一种基于晶间机械相互作用的反作用应力模型，用于将由渗透滑移和其他局部滑移引起的滚动变形保持在一定的上限以下。在模型的整个轧制薄板中都达到了应力和应变平衡，并且预测了相同的泰勒织构，而在多晶基体内部的任何地方都没有泰勒应变张量，而各向同性基体是刚性的还是弹性的。如果包括附加滑移对降低反应剪切应力上限的松弛效应，则可以基于该模型模拟实验多晶金属中的轧制纹理形成。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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