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非晶合金准静态循环加载过程滞弹性行为的反速率依赖性
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西安理工大学 材料科学与工程学院,长安大学,西安理工大学 材料科学与工程学院,西北有色金属研究院,西安理工大学 材料科学与工程学院,长安大学

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TB333

基金项目:

(项目批准号:51401160、51504191)、中国博士后基金(项目批准号:2015M582688)、陕西省自然科学基础研究计划项目(项目批准号:2015JQ5169,Z10-03081)及陕西省教育厅专项科研计划项目(项目批准号:14JK1533)的资助。


Paradoxical Phenomena in Quasi-static Cyclic Loading-unloanding Compression Tests of Bulk metallic glasses
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School of Materials Science and Engineering,Xi’ an University of Technology,Xi’ an,,School of Materials Science and Engineering,Xi’ an University of Technology,Xi’ an,Northwest Institude For Non-Ferrous Metal Research,Xi’ an,School of Materials Science and Engineering,Xi’ an University of Technology,Xi’ an,

Fund Project:

The National Natural Science Foundation of China [grant number 51401160、51504191], the China Postdoctoral Science Foundation[grant number 2015M582688], Nature Science Basic Research Plan in Shannxi Province of China [Program number 2015JQ5169、Z10-03081] and Science Research Plan Projects of Shannxi Province Education Department [Program number 14JK1533]

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    摘要:

    在几何抑制条件下,对锆基块体非晶试样进行不同加载速率的室温准静态循环加载-卸载压缩实验。结果发现,合金存在明显的滞弹性行为、且滞后环面积与加载速率成反比,这与弹性应力诱发的微观结构演化有关。由于弹性应力诱发的微观结构演化与剪切带的空间增殖密切相关,因此循环加载能量消耗可以作为表征块体非晶合金剪切带空间增殖能力的参数。

    Abstract:

    The anelasticity behavior was investigated of Zr-based bulk metallic glasses in a geometrically constrained quasi-static cyclic loading–unloading compression tests. The results demonstrated that the dissipative energy during cycle loading was in inverse proportion to the cross-head displacement rate used, and the anelasticity behavior have close correlation with the elastic stress-induced microstructure evolution. The dissipative energy during cycle loading in BMGs could also be used as a parameter to characterize the spatial multiplication ability of shear bands. The larger dissipative energy implies the higher the spatial multiplication ability of shear bands.

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引用本文

韩振华,孙劲松,杨鑫,康新婷,张国君,张长军.非晶合金准静态循环加载过程滞弹性行为的反速率依赖性[J].稀有金属材料与工程,2017,46(9):2577~2582.[Han Zhenhua, Sun jinsong, Yang xin, Kang xinting, Zhang guojun, Zhangchangjun. Paradoxical Phenomena in Quasi-static Cyclic Loading-unloanding Compression Tests of Bulk metallic glasses[J]. Rare Metal Materials and Engineering,2017,46(9):2577~2582.]
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  • 收稿日期:2016-11-15
  • 最后修改日期:2016-11-15
  • 录用日期:2016-12-07
  • 在线发布日期: 2017-11-29
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