Microstructure and mechanical properties of a novel Zr-based bulk metallic glass composite

SUN Yufeng; WANG Yuren; GUO Jian; WEI Bingchen; LI Weihuo

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Microstructure and mechanical properties of a novel Zr-based bulk metallic glass composite

机译：新型Zr基块状金属玻璃复合材料的组织和力学性能

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摘要

Zr_(48.5)Cu_(46.5)Al_5 bulk metallic glass (BMG) composites with diameters of 3 and 4 mm were prepared through suction casting in an arc melting furnace by modulating the alloy composition around the monothetic BMG composition of the high glass forming ability. Microstructural characterization reveals that the composites contain micron-sized CuZr phase with martensite structure, as well as nano-sized Zr_2Cu crystalline particles and Cu_(10)Zr_7 plate-like phase embedded in an amorphous matrix. Room temperature compression tests showed that the composites exhibited significant strain hardening and obvious plastic strain of 7.7% for 3 mm and 6.4% for 4 mm diameter samples, respectively.

机译：通过在电弧熔化炉中通过吸铸，通过调节具有高玻璃成形能力的单晶BMG组成周围的合金组成，来制备直径为3和4mm的Zr_（48.5）Cu_（46.5）Al_5块状金属玻璃（BMG）复合材料。微观结构表征表明，复合材料包含具有马氏体结构的微米级CuZr相，纳米级Zr_2Cu晶体颗粒和嵌入非晶基体中的Cu_（10）Zr_7板状相。室温压缩试验表明，对于直径为3 mm的样品，复合材料分别表现出明显的应变硬化和明显的塑性应变，分别为7.7％和6.4％。

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来源
《Chinese science bulletin》 |2005年第24期|p.2804-2808|共5页
作者
SUN Yufeng; WANG Yuren; GUO Jian; WEI Bingchen; LI Weihuo;
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作者单位

National Microgravity Lab, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China;

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原文格式 PDF
正文语种 eng
中图分类自然科学现状及发展;
关键词
bulk metallic glass; composites; shear bands; plastic deformation; microstructure;

机译：大块金属玻璃;复合材料;剪切带;塑性变形;微观结构;

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2. Correlation of the microstructure and mechanical properties of Zr-based in-situ bulk metallic glass matrix composites [J] . J.L. Cheng, G. Chen, F. Xu, Intermetallics . 2010,第12期

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3. Microstructure and mechanical properties of a novel Zr-based bulk metallic glass composite [J] . SUN Yufeng, WANG Yuren, GUO Jian, Chinese science bulletin . 2005,第24期

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4. Evolution of microstructure and mechanical properties of Zr-based in-situ bulk metallic glass matrix composite under the Bridgman solidification [C] . J.L. Cheng, G. Chen, H.W. Xu Materials science amp; technology 2010 conference amp; exhibition . 2010

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6. Drastic influence of minor Fe or Co additions on the glass forming ability martensitic transformations and mechanical properties of shape memory Zr–Cu–Al bulk metallic glass composites [O] . Sergio González, Pablo Pérez, Emma Rossinyol, 2014

机译：少量Fe或Co对形状记忆Zr-Cu-Al大块金属玻璃复合材料的玻璃形成能力马氏体转变和力学性能的剧烈影响
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8. High Strain-Rate Investigation of a Zr-Based Bulk Metallic Glass and an HTPB Polymer Composite [R] . Sunny, G. P. 2011

机译：Zr基块体金属玻璃和HTpB聚合物复合材料的高应变率研究

Microstructure and mechanical properties of a novel Zr-based bulk metallic glass composite

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