熔体保温温度对Wf/Zr基金属玻璃复合材料室温力学性能的影响

高度; 陈光; 范沧

doi:10.3724/SP.J.1037.2013.00541

金属学报 >

2013 , Vol. 49 >Issue 11: 1481 - 1486

DOI: https://doi.org/10.3724/SP.J.1037.2013.00541

论文

熔体保温温度对W_f/Zr基金属玻璃复合材料室温力学性能的影响

高度 ,
陈光 ,
范沧

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南京理工大学材料评价与设计教育部工程研究中心, 南京 210094

高度, 男, 1983年生, 博士生

收稿日期: 2013-09-02

修回日期: 2013-09-23

网络出版日期: 2013-11-11

基金资助

国家自然科学基金项目50971057和51371099资助

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INFLUENCE OF MELT HOLDING TEMPERATURES ON MECHANICAL PROPERTIES AT ROOM TEMPERATURE OF W_f/Zr－BASED METALLIC GLASS COMPOSITES

GAO Du ,
CHEN Guang ,
FAN Cang

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Engineering Research Center of Materials Behavior and Design,Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094

Received date: 2013-09-02

Revised date: 2013-09-23

Online published: 2013-11-11

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摘要

系统研究了熔体保温温度对渗流铸造快淬法制备的W_f/Zr基金属玻璃复合材料的影响.室温力学性能测试结果表明, W_f/Zr基金属玻璃复合材料在制备过程中存在一个最佳熔体保温温度.偏离该保温温度, 复合材料的室温压缩塑性发生恶化.光学显微组织和能谱分析结果表明其原因在于, 在不同的熔体保温温度,基体内产生不同数量的各种析出相. 在最佳熔体保温温度810℃下,制备出了室温压缩塑性达到19.6%的、W_f体积分数为75%的复合材料.

关键词： 金属玻璃复合材料; W纤维; 析出相; 保温温度; 压缩塑性

本文引用格式

高度 , 陈光 , 范沧 . 熔体保温温度对W_f/Zr基金属玻璃复合材料室温力学性能的影响[J]. 金属学报, 2013 , 49(11) : 1481 -1486 . DOI: 10.3724/SP.J.1037.2013.00541

Abstract

The effect of the molten temperatures on the preparation of the W_f/Zr－based metallic glass composites by infiltration casting rapid quenching technique was well studied. The results of the mechanical properties at ambient temperature indicate that the composite has an optimum melt holding temperature in the preparation process. Lower or higher than the optimum temperature, the compressive plasticity of the composite deteriorated. The optical microstructure and EDS analyses indicate that the reason for the deterioration of the compressive plasticity was the resulted microstructures, which contains different precipitates with different molten temperatures. At the optimum preparation condition, a W_f/Zr--based metallic glass composite with 75% volume fraction of tungsten fiber was successfully produced with significantly improved compressive plasticity of 19.6%.

Key words： metallic glass composite; W fiber, precipitate; melt holding temperature; compression plasticity

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