Tensile properties of tungsten-rhenium wires with nanofibrous structure

Na-na Qiu; Yin Zhang; Cheng Zhang; Huan Tong; Xi-ping Song

doi:10.1007/s12613-018-1656-x

Volume 25 Issue 9

Sep. 2018

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文章导航 > 矿物冶金与材料学报（英文） > 2018 > 25(9): 1055-1059

Na-na Qiu, Yin Zhang, Cheng Zhang, Huan Tong, and Xi-ping Song, Tensile properties of tungsten-rhenium wires with nanofibrous structure, Int. J. Miner. Metall. Mater., 25(2018), No. 9, pp. 1055-1059. https://doi.org/10.1007/s12613-018-1656-x

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Na-na Qiu, Yin Zhang, Cheng Zhang, Huan Tong, and Xi-ping Song, Tensile properties of tungsten-rhenium wires with nanofibrous structure, Int. J. Miner. Metall. Mater., 25(2018), No. 9, pp. 1055-1059. https://doi.org/10.1007/s12613-018-1656-x

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研究论文

Tensile properties of tungsten-rhenium wires with nanofibrous structure

State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

通讯作者:
Xi-ping Song E-mail: xpsong@skl.ustb.edu.cn

中文摘要

In this study, the mechanical properties of tungsten-rhenium wires with nanofibrous microstructure were investigated at both room temperature (RT) and 800℃. The strengthening mechanism associated to the nanofibrous microstructure was discussed. The results showed that the tungsten-rhenium wires with nanofibrous grains exhibited a very high tensile strength reaching values of 3.5 GPa and 4.4 GPa for the coarse (grains diameter of 240 nm) and fine (grains diameter of 80 nm) wires, respectively. With increasing the temperature from RT to 800℃, the tensile strength decreased slightly but still held high values (1.8 GPa and 3.8 GPa). All the fracture surfaces exhibited apparent necking and characteristics of spear-edge shaped fracture surface, indicating excellent ductility of the wires. A model of the strengthening mechanism of these tungsten-rhenium wires was proposed.

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Research Article

Tensile properties of tungsten-rhenium wires with nanofibrous structure

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Abstract

Abstract

In this study, the mechanical properties of tungsten-rhenium wires with nanofibrous microstructure were investigated at both room temperature (RT) and 800℃. The strengthening mechanism associated to the nanofibrous microstructure was discussed. The results showed that the tungsten-rhenium wires with nanofibrous grains exhibited a very high tensile strength reaching values of 3.5 GPa and 4.4 GPa for the coarse (grains diameter of 240 nm) and fine (grains diameter of 80 nm) wires, respectively. With increasing the temperature from RT to 800℃, the tensile strength decreased slightly but still held high values (1.8 GPa and 3.8 GPa). All the fracture surfaces exhibited apparent necking and characteristics of spear-edge shaped fracture surface, indicating excellent ductility of the wires. A model of the strengthening mechanism of these tungsten-rhenium wires was proposed.
- tungsten-rhenium wire;
- mechanical properties;
- nanofibrous microstructure;
- tensile strength

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Tensile properties of tungsten-rhenium wires with nanofibrous structure

中文摘要

Tensile properties of tungsten-rhenium wires with nanofibrous structure

Abstract

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