...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Role of tensile elastostatic loading on atomic structure and mechanical properties of Zr_(55)Cu_(30)Ni_5Al_(10) bulk metallic glass
【24h】

Role of tensile elastostatic loading on atomic structure and mechanical properties of Zr_(55)Cu_(30)Ni_5Al_(10) bulk metallic glass

机译：拉伸弹性加载对原子结构的作用和Zr_（55）Cu_（30）Ni_5Al_（10）散装金属玻璃的机械性能

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

In this work, the pre-tensile elastostatic loading with low stress values (5%-20% sigma(y)) was used to rejuvenate Zr55Cu30Ni5Al10 bulk metallic glass (BMG). The atomic pair density function analysis shows that the rejuvenation evolution is accompanied with a significant disordering of short and medium atomic scales in the BMG structure. The results also indicate that the decreasing rate of annihilation in Cu-Zr pairs under rejuvenation is higher than Zr-Zr and Zr-Al pairs. In general, it is suggested that the interaction of stress domains under elastostatic loading is the main reason for disordering during the rejuvenation evolution. The compression test reveals that a brittle-to-ductile transition is happened from as-cast sample to the rejuvenated ones. Moreover, it is found that the serrations in the plastic region of stress-strain curves of highly-rejuvenated samples show a self-organized critical state. As a whole, with increase in pre-tensile elastostatic loading value, the structural rejuvenation enhances and the homogeneous plasticity improves.
机译：在这项工作中，使用低应力值（5％-20％Sigma（Y））的张力急性载荷来恢复Zr55Cu30Ni5A110块状金属玻璃（BMG）。原子对密度函数分析表明，恢复活力进化伴随着BMG结构中短和媒体原子尺度的显着障碍。结果还表明，在恢复过程中Cu-Zr对中的湮灭率降低高于Zr-Zr和Zr-Al对。通常，建议在弹性型载荷下的应力域的相互作用是在恢复活力过程中无序的主要原因。压缩测试表明，从铸造样品到恢复活力的样品发生脆性转变转变。此外，发现高度恢复的样品的应力 - 应变曲线的塑料区域中的锯齿显示出自组织的临界状态。总的来说，随着预拉伸弹性加载值的增加，结构恢复增强和均匀塑性提高。

著录项

相似文献

  • 外文文献
  • 中文文献
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