• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >High-Speed Rolling of AZ31 Magnesium Alloy Having Different Initial Textures
【24h】

High-Speed Rolling of AZ31 Magnesium Alloy Having Different Initial Textures

机译：初始织构不同的AZ31镁合金的高速轧制

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

It is known that magnesium alloys can be rolled up to a large thickness reduction and develop a unique texture when the rolling speed is high (> 1000 m/min). In order to understand the texture formation mechanism during high-strain-rate deformation, high-speed rolling of AZ31 magnesium alloy samples having different initial textures was conducted. The main components of the textures after the rolling were the RD-split basal, which consisted of 10A degrees-20A degrees inclining basal poles from the normal direction toward the rolling direction of the sheet, regardless of the different initial textures. With preheating at 473 K, all the samples were rolled without cracking while all were cracked when preheating was not applied. The optical micrographs and EBSD measurements showed a significant amount of twins and the cracks that developed along the shear bands consisted with laminated twins. Based on the texture simulation using the visco-plastic self-consistent model, it is concluded that the rapid development of the RD-split basal component from the initial basal alignment along the transverse direction was attributable to the tension twinning, The effect of the initial texture on the crack formation can be explained by the activation of the twinning system.
机译：众所周知，当轧制速度高（> 1000 m / min）时，镁合金可以轧制成较大的厚度减小量，并形成独特的织构。为了理解高应变率变形时的织构形成机理，对具有不同初始织构的AZ31镁合金样品进行了高速轧制。轧制后织构的主要成分是RD分裂基底，它由10A度至20A度的基底极从法线方向向板材的轧制方向倾斜，与初始织构不同无关。在473 K的预热下，所有样品均在不开裂的情况下轧制，而在未施加预热时所有样品均开裂。光学显微照片和EBSD测量显示大量孪晶，沿着剪切带形成的裂纹由层压孪晶组成。在基于粘塑性自洽模型的纹理模拟的基础上，得出的结论是，RD分裂的基础成分从初始的基础排列沿横向方向的快速发展归因于张力孪生，初始的影响孪晶系统的激活可以解释裂纹形成上的织构。

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