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Structure and properties of Zr-Ta-Cu-Ni-Al bulk metallic glasses and metallic glass matrix composites

机译:Zr-Ta-Cu-Ni-Al块状金属玻璃和金属玻璃基复合材料的结构和性能

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摘要

We have developed a series of alloys which, upon cooling from the melt, form two-phase microstructures consisting of crystalline Ta-rich solid solution particles embedded in a bulk metallic glass matrix. These alloys have the general composition (Zr70Ni10Cu20)(90-x)TaxAl10 where 0 less than or equal to x less than or equal to 12 (all compositions are in atomic percent). These alloys have mechanical properties consistent with metallic glasses, including high yield strength (similar to2 GPa) and large elastic elongation (similar to2%). However, they also show much larger plastic strain to failure (up to 16%) in uniaxial compression than monolithic metallic glasses. (C) 2003 Elsevier Science B.V. All rights reserved. [References: 12]
机译:我们开发了一系列合金,这些合金从熔体中冷却后,形成两相微观结构,该结构由嵌入块状金属玻璃基质中的富含Ta的结晶固溶体颗粒组成。这些合金的一般成分为(Zr70Ni10Cu20)(90-x)TaxAl10,其中0小于或等于x小于或等于12(所有成分均以原子百分比计)。这些合金具有与金属玻璃一致的机械性能,包括高屈服强度(约2 GPa)和较大的弹性伸长率(约2%)。但是,与单片金属玻璃相比,它们在单轴压缩中也表现出更大的塑性应变破坏(高达16%)。 (C)2003 Elsevier Science B.V.保留所有权利。 [参考:12]

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