Mechanical Behavior of Bulk Amorphous Alloys Reinforced by Ductile Particles at Cryogenic Temperatures

Cang Fan; Hongqi Li; Laszlo J. Kecskes; Kaixiang Tao; Hahn. Choo; P. K. Liaw; C. T. Liu

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Mechanical Behavior of Bulk Amorphous Alloys Reinforced by Ductile Particles at Cryogenic Temperatures

机译：低温下球状颗粒增强非晶态非晶态合金的力学行为

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The mechanical behavior of Zr-based bulk amorphous alloy composites (BAACs) was investigated at 77 K. The 5 vol. % Ta-BAAC maintained large plastic strains of ～13% with a 16% strength increase, when compared with that at 298 K. The interaction between shear bands and particles shows that shear extension in particles has limited penetration, and shear bands build up around particles. In addition to on the failure surface of the amorphous matrix, molten characteristics were also found on the surface of sheared particles. Pair distribution function studies were performed to understand the mechanical behavior.

机译：Zr基块状非晶合金复合材料（BAAC）的机械性能在77 K下进行了研究。与298 K相比，％Ta-BAAC维持约-13％的大塑性应变，强度增加了16％。剪切带与颗粒之间的相互作用表明，颗粒中的剪切扩展具有有限的渗透性，并且剪切带在周围形成粒子。除了在无定形基体的破坏表面上，在剪切颗粒的表面上还发现了熔融特性。进行配对分布函数研究以了解机械行为。

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来源
《Physical review letters》 |2006年第14期|p.145506.1-145506.4|共4页
作者
Cang Fan; Hongqi Li; Laszlo J. Kecskes; Kaixiang Tao; Hahn. Choo; P. K. Liaw; C. T. Liu;
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作者单位

Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37923, USA;

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原文格式 PDF
正文语种 eng
中图分类物理学;
关键词
deformation and plasticity (including yield, ductility, and superplasticity); neutron diffraction and scattering;

机译：变形和可塑性（包括屈服;延展性和超塑性）;中子衍射和散射;

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Mechanical Behavior of Bulk Amorphous Alloys Reinforced by Ductile Particles at Cryogenic Temperatures

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