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摘要本文采用Zr56.2Ti13.8Nb5.0Cu6.9Ni5.6Be12.5为基体，以钨纤文为增强相，制备无缺陷金属玻璃复合材料。与传统的玻璃管水淬法相比，本文通过高压渗流法成功制备出无缺陷Wf/ Zr56.2Ti13.8Nb5.0Cu6.9Ni5.6Be12.5金属玻璃复合材料，利用光学显微镜(OM)、扫描电镜(SEM)和 X 射线衍射（XRD）对所制备的金属玻璃复合材料进行表征，并研究了保温温度对该复合材料的析出相尺寸、形貌及界面扩散的影响规律；利用电子万能试验机对复合材料进行室温准静态压缩性能测试。研究结果表明：保温温度显著影响 Wf/金属玻璃复合材料的析出相状态，随着保温温度的降低，析出相由尺寸较大的树枝晶相→细小密集的树枝晶相→树枝晶相+长条状相→弥散分布的颗粒状相+大量的长条状相。而且，随着保温温度的升高，界面扩散层逐渐变厚。
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毕业论文关键词 金属玻璃 无缺陷 保温温度 复合材料 20879
Title The Preparation of Wf/Zr-Based Metallic Glass Composites
Materials Without Defects
Abstract
In this paper, Zr56.2Ti13.8Nb5.0Cu6.9Ni5.6Be12.5 as matrix and tungsten fiber as
reinforcement to prepare Wf/Zr-based metallic glass composites materials without defects.
Compared with the traditional glass of water quenching method, the paper successfully
prepared of Wf/Zr-based metallic glass composite materials without defects by
high-pressure flow, using optical microscopy (OM), scanning electron microscopy
(SEM) and X-ray diffraction (XRD) for the preparation of metallic glass composites
were characterized and studied the influence of temperature on the thermal insulation
composite precipitates size, morphology and interfacial diffusion; electronic universal
testing machine for complex material at room temperature quasi-static compression
performance testing. The results showed that: the holding temperature significantly
affect the precipitation phase state of Wf/Zr-based glass composite material, with the
decrease of holding temperature ,the shape of precipitates from larger size of dendrites
phase to small dense dendrite phase to dendrite phase and strip phase to dispersed
distribution of particulate phase and plenty of strip phase. Moreover, With increasing
the holding temperature, the interfacial diffusion layers become thicken.
Keywords: metallic glass; defect-free; holding temperature; composites
目 次
1 绪论 1
1.1 块状金属玻璃的发展历程 1
1.2 块体金属玻璃（BMG）的形成机制 3
1.3 块体金属玻璃的几种常用的制备方法 6
1.4 钨纤文增强块体非晶复合材料 7
1.5 本课题研究的内容及目的 9
2 实验方法与实验条件 11
2.1 实验原材料 11
2.2 试棒制备装置及工艺流程 11
2.3 试样性能测试与表征方法 14
3 无缺陷 Wf/Zr 基金属玻璃复合材料的制备工艺研究 15
3.1 引言 15
3.2 无缺陷 Wf/金属玻璃复合材料制备 15
3.3 保温温度对微观组织的影响 19
3.4 钨纤文的界面分析 25
3.5 力学性能的分析 26
结论 27
致谢 28
参考文献 29 1 绪论
近几年块体金属玻璃(BMG)之所以引起了人们广泛的关注，其主要原因是金属玻