• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Metal Forming >The Influence of Rolling Schedule on the Dynamic Properties of Accumulatively Roll Bonded Nano-Layered Cu-Nb
【24h】

The Influence of Rolling Schedule on the Dynamic Properties of Accumulatively Roll Bonded Nano-Layered Cu-Nb

机译：滚动时间表对累积辊键合纳米克 - Nb动态性能的影响

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

摘要

Cu-Nb nano-layered material was produced through an accumulative roll bonding (ARB) technique. Using this technique, two different rolling schedules were employed to produce a normal and transverse rolled material. This resulted in specimens with differing microstructures within the 135nm thick nano-layers and interface structures between the layers. The dynamic response of these bulk Cu-Nb nanocomposites was then investigated under planar shock loading. It was observed in dynamically fractured specimens that the characteristics of ductile failure features formed on the fracture surface after dynamic loading were dependent upon the processing route of the nanocomposite. Specifically, grain shape differences due to dissimilar rolling passes are linked with differences in the failure response, particularly kinetics of fracture. In addition, incipient failure immediately below the primary fracture surface was also observed. Numerous nanovoids were nucleated and aligned linearly in the middle of Cu layers within the shocked Cu-Nb nanocomposites. These observations indicate relative stability of Cu-Nb interfaces produced by the ARB methods utilized in this study under dynamic loading conditions.
机译：通过累积辊键合（ARB）技术制备Cu-Nb纳米层状材料。使用该技术，采用两个不同的滚动时间表来生产正常和横向轧制材料。这导致样品在135nm厚的纳米层内具有不同微结构和层之间的界面结构。然后在平面冲击载荷下研究了这些本体Cu-Nb纳米复合材料的动态响应。在动态断裂标本中观察到，在动态载荷后在断裂表面上形成的延展性衰竭特征的特性取决于纳米复合材料的加工路线。具体地，由于异常的轧制引起的晶粒形状差异与破坏响应的差异，特别是断裂动力学的差异。此外，还观察到初级骨折表面下方的初期失败。许多纳米型核解并在震动的Cu-Nb纳米复合材料中的Cu层中线性地对齐。这些观察结果表明在动态负载条件下本研究中使用的ARB方法产生的Cu-NB界面的相对稳定性。

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