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首页> 外文期刊>Materials Science and Engineering >Anisotropic mechanical properties of tantalum-continuous-fiber-reinforced amorphous matrix composites fabricated by liquid pressing process
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Anisotropic mechanical properties of tantalum-continuous-fiber-reinforced amorphous matrix composites fabricated by liquid pressing process

机译：液体压制钽连续纤维增强非晶态复合材料的各向异性力学性能

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摘要

Anisotropic mechanical properties of a Zr-based amorphous alloy matrix composite reinforced with tantalum continuous fiber fabricated by liquid pressing process were investigated by tensile and compressive tests of 0°(longitudinal)-,45°-, and 90°(transverse)-orientation specimens. The ductility was dramatically improved over that of the monolithic amorphous alloy under tensile compressive loading conditions, while maintaining high strength. When the fiber direction was not matched with the loading direction, the reduction of the strength and ductility was not serious because of excellent fiber/matrix interfacial strength. The anisotropic deformation and fracture analyses showed that the formation of multiple shear bands, obstruction of crack propagation by fibers, and deformation of fibers led to the tensile elongation of 3-4% and compressive elongation of 15-30%. These findings suggested that the liquid pressing process was useful for the development of amorphous matrix composites with excellent ductility and anisotropic mechanical properties.
机译：通过0°（纵向）-，45°-和90°（横向）试样的拉伸和压缩试验，研究了液体连续挤压钽连续纤维增强的Zr基非晶合金基复合材料的各向异性力学性能。 。在保持高强度的同时，在拉伸压缩载荷条件下，其延展性明显优于整体非晶态合金。当纤维方向与加载方向不匹配时，由于优异的纤维/基质界面强度，强度和延展性的降低并不严重。各向异性变形和断裂分析表明，多条剪切带的形成，纤维对裂纹扩展的阻碍以及纤维的变形导致拉伸伸长率为3-4％，压缩伸长率为15-30％。这些发现表明，液体压制工艺对于开发具有优异延展性和各向异性机械性能的无定形基体复合材料很有用。

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