无缺陷Wf金属玻璃复合材料的制备
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