• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Faulted dipoles in a nanostructured 7075 Al alloy produced via high-pressure torsion
【24h】

Faulted dipoles in a nanostructured 7075 Al alloy produced via high-pressure torsion

机译：通过高压扭力产生的纳米结构7075铝合金中的故障偶极子

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 faulted dipoles in face-centered cubic materials have been well proposed theoretically to comprise two opposing-sign Shockley dislocations and two opposing-sign sessile stair-rod dislocations connected by three stacking faults; however, studies on them have hitherto received limited attention. In the present study, the faulted dipoles in a nanostructured Al alloy produced via high-pressure torsion were observed and identified using high resolution transmission electron microscopy. The mechanisms underlying the formation of the faulted dipoles were discussed. As strong barriers to dislocation motion, the sessile faulted dipoles present a potential to entrap dislocations, enhancing work-hardening ability and ductility of nanostructured metals and alloys.
机译：理论上已经很好地提出了以面心为中心的立方材料中的断层偶极子，该偶极子包括两个对置的肖克利位错和两个对置的无柄楼梯杆位错，它们通过三个堆垛层错相连。然而，迄今为止对它们的研究很少受到关注。在本研究中，通过高分辨率扭转电子显微镜观察和鉴定了通过高压扭转产生的纳米结构铝合金中的故障偶极子。讨论了故障偶极子形成的机理。无柄断层偶极子是位错运动的强大障碍，具有捕获位错的潜力，可增强纳米结构金属和合金的加工硬化能力和延展性。

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