...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Research >Structural origin of the pinpoint-composition effect on the glass-forming ability in the NiNb alloy system
【24h】

Structural origin of the pinpoint-composition effect on the glass-forming ability in the NiNb alloy system

机译：NiNb合金体系中精确组成对玻璃形成能力的结构起源

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

Great research efforts to investigate the glass-forming ability (GFA) in alloys have been made, leading to an observation that a pinpoint composition produces the best glass-forming characteristics. The reason for this observation is still unknown, limiting the development of bulk metallic glasses (MG_s) with a relatively large size. In this work, systematic experimental measurements coupled with calculations were performed to address this issue using the NiNb binary alloy system. It is found that the atomic-level packing efficiency and the clusters-level regularity parameters strongly contribute to their GFA. In particular, the best glass former found in a pinpoint composition possesses the local maximum of the atomic-packing efficiency and the highest degree of the cluster regularity. This work provides an understanding of GFA from atomic and cluster levels and will shed light on the development of more MGs with relatively large critical casting sizes.
机译：为了研究合金中的玻璃形成能力（GFA），已经做出了巨大的研究努力，从而导致观察到精确的成分可以产生最佳的玻璃形成特性。该观察的原因仍是未知的，这限制了具有相对大尺寸的块状金属玻璃（MG_s）的发展。在这项工作中，使用NiNb二元合金系统进行了系统的实验测量和计算，以解决该问题。发现原子级填充效率和簇级规则性参数对其GFA有很大贡献。特别地，在精确的组成中发现的最好的玻璃形成剂具有原子堆积效率的局部最大值和簇规则性的最高程度。这项工作从原子和簇的角度提供了对GFA的理解，并将为开发更多具有相对较大的临界铸件尺寸的MG提供启示。

著录项

  • 来源
    《Journal of Materials Research》 |2013年第22期|3170-3177|共8页
  • 作者

    Liang Yang; Xiang-fei Meng; Gu-qing Guo;

  • 作者单位

    Department of Nuclear Science and Engineering, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China;

    Department of Nuclear Science and Engineering, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China;

    Department of Nuclear Science and Engineering, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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