...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Effect of strain rate on microscale formability and microstructural evolution of TA1 foil
【24h】

Effect of strain rate on microscale formability and microstructural evolution of TA1 foil

机译：应变率对TA1箔微观成形性和微观结构演化的影响

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

The ultrathin miniaturized metal foil has high sensitivity to strain rate due to the size effect during microforming processes. The correlations between the strain rate, size effect and microformability are still unclear at the micro-nano-scale. Hence, the coupling influence mechanism of strain rate and foil thickness on micro-deformation behavior of ultrathin (＜20 μm) TA1 foil is investigated through uniaxial tensile tests at room temperature. The macro-mechanical laws are described by the stress-strain analysis. Meanwhile, to better clarify the micro-mechanism of macro-mechanical response, EBSD analysis and molecular dynamics simulation were conducted to research the evolution of micro/nano structures and the fracture morphologies of the specimens after tensions were observed by SEM. The results indicate that the strain rate has significant effect on the microstructural evolutions of specimens with different thickness after uniaxial tensile. The investigation provides an in-depth understanding on the deformation mechanism of ultrathin miniaturized TA1 foil and promotes the application for improvement the formability of high-strength micro-components at room temperature.
机译：超小型化金属箔由于在微铸过程中由于尺寸效应而具有高敏感性。在微纳米级仍然不清楚应变速率，尺寸效应和微量成型性之间的相关性。因此，通过室温下的单轴拉伸试验研究了应变速率和箔厚度对微畸形行为的耦合影响机理。通过应力 - 应变分析描述了宏观机械规律。同时，为了更好地阐明宏观机械响应的微机制，进行了EBSD分析和分子动力学模拟，以研究微/纳米结构的演变和SEM观察张力后试样的骨折形态。结果表明，应变率对单轴拉伸后具有不同厚度的样品的微观结构演变具有显着影响。该研究对超小型TA1箔的变形机理进行了深入的了解，并促进了在室温下改善高强度微量组分的成形性的应用。

著录项

  • 来源
    《Materials Science and Engineering》 |2021年第10期|141338.1-141338.11|共11页
  • 作者

    Tianyi Ma; Yao Wang; Chao Yang; Alamusi; Qibo Deng; Yang Liu; Xuan Li; Qiang Wei; Ning Hu;

  • 作者单位

    School of Mechanical Engineering Hebei University of Technology Tianjin 300401 China;

    School of Mechanical Engineering Hebei University of Technology Tianjin 300401 China;

    School of Mechanical Engineering Hebei University of Technology Tianjin 300401 China;

    School of Mechanical Engineering Hebei University of Technology Tianjin 300401 China;

    School of Mechanical Engineering Hebei University of Technology Tianjin 300401 China;

    College of Physics Mechanical and Electrical Engineering Jishou University Jishou 416000 China;

    School of Materials Science and Engineering Beihang University Beijing 100191 China;

    School of Mechanical Engineering Hebei University of Technology Tianjin 300401 China;

    School of Mechanical Engineering Hebei University of Technology Tianjin 300401 China State Key Laboratory of Reliability and Intelligence Electrical Equipment Hebei University of Technology Tianjin 300130 China National Engineering Research Center for Technological Innovation Method and Tool Hebei University of Technology Tianjin 300401 China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Strain rate; Size effect; Ultrathin TA1 foil; Microformability; Microstructural evolution;

    机译：应变率;尺寸效应;超薄Ta1箔;微型成形性;微观结构演变;

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