• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>TMS annual meeting exhibition >Strain Localization Structures in Textured Magnesium AZ31 Under Reversed Loading via Microscopic Digital Image Correlation
【24h】

Strain Localization Structures in Textured Magnesium AZ31 Under Reversed Loading via Microscopic Digital Image Correlation

机译：微观数字图像关联在反向载荷下织构镁AZ31的应变局部化结构

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In favorable crystallographic texture and loading path combinations, Magnesium AZ31 deformation is dominated by twinning. A marked component of the material behavior in this regime is the spatial distribution of the accommodated strain: there is sharp strain localization at every length scale including macroscopic, stemming from an abrupt propagation of twinning events across neighboring grains (e.g., Aydiner and Telemez, Int. J. Plas. 2014(56), p. 203). Strain mapping with digital image correlation (DIC) has been instrumental in bridging length scales and highlighting strain heterogeneity levels in this material. With a multiple-optical-axis DIC apparatus, strain maps are obtained with macroscopic and microscopic resolution for the full field. For the sharp rolling texture, strain heterogeneity patterns can be directly interpreted on the micro-mechanisms of the abundant orientation. These patterns are presented at representative points of the reverse-loading cycle and interpreted with respect to operative twin and slip mechanisms.
机译：在良好的晶体学织构和加载路径组合中，镁AZ31变形主要由孪晶形成。在此状态下，材料行为的一个显着组成部分是所容纳应变的空间分布：在包括宏观在内的每个长度尺度上都存在明显的应变局部化，这是由于孪生事件在相邻晶粒之间突然传播所致（例如，Aydiner和Telemez，Int J. Plas。2014（56），第203页）。具有数字图像相关性（DIC）的应变映射在桥接长度标度和突出显示此材料中的应变异质性水平方面发挥了作用。使用多光轴DIC设备，可以在整个视野中以宏观和微观分辨率获得应变图。对于锐利的滚动织构，可以在丰富取向的微观机制上直接解释应变异质性模式。这些模式显示在反向加载循环的代表点，并针对可操作的孪生和滑移机制进行解释。

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