Effect of strain rate on plastic flow in Zr-based metallic-glass-reinforced porous tungsten matrix composites

Y. F. Xue; L. Wang; H. N. Cai; F. C. Wang; H. W. Cheng; H. F. Zhang; A. M. Wang

doi:10.1007/s11661-011-0742-8

Effect of strain rate on plastic flow in Zr-based metallic-glass-reinforced porous tungsten matrix composites

Y. F. Xue^*, L. Wang, H. N. Cai, F. C. Wang, H. W. Cheng, H. F. Zhang, A. M. Wang

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The rate-dependent deformation of Zr₃₈Ti₁₇Cu _10.5Co₁₂Be_22.5 bulk metallic-glass-reinforced porous tungsten matrix composites was investigated over a wide range of strain rates. The composites were examined in two forms: the as-cast composite and the as-extruded composite by extrusion. In addition to showing greater strain hardening, the as-cast composite also shows much more obvious strain rate dependence of flow stress than the as-extruded composite. Microhardness tests were performed on the tungsten and the metallic glass phase in both composites, respectively. The results from the microhardness measurements indicate that the strain rate sensitivity of the as-extruded composite is primarily a result of strain rate sensitivity of the tungsten phase.

Original language	English
Pages (from-to)	3521-3526
Number of pages	6
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	42
Issue number	11
DOIs	https://doi.org/10.1007/s11661-011-0742-8
Publication status	Published - Nov 2011

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title = "Effect of strain rate on plastic flow in Zr-based metallic-glass-reinforced porous tungsten matrix composites",

abstract = "The rate-dependent deformation of Zr38Ti17Cu 10.5Co12Be22.5 bulk metallic-glass-reinforced porous tungsten matrix composites was investigated over a wide range of strain rates. The composites were examined in two forms: the as-cast composite and the as-extruded composite by extrusion. In addition to showing greater strain hardening, the as-cast composite also shows much more obvious strain rate dependence of flow stress than the as-extruded composite. Microhardness tests were performed on the tungsten and the metallic glass phase in both composites, respectively. The results from the microhardness measurements indicate that the strain rate sensitivity of the as-extruded composite is primarily a result of strain rate sensitivity of the tungsten phase.",

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AU - Xue, Y. F.

AU - Wang, L.

AU - Cai, H. N.

AU - Wang, F. C.

AU - Cheng, H. W.

AU - Zhang, H. F.

AU - Wang, A. M.

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Y1 - 2011/11

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AB - The rate-dependent deformation of Zr38Ti17Cu 10.5Co12Be22.5 bulk metallic-glass-reinforced porous tungsten matrix composites was investigated over a wide range of strain rates. The composites were examined in two forms: the as-cast composite and the as-extruded composite by extrusion. In addition to showing greater strain hardening, the as-cast composite also shows much more obvious strain rate dependence of flow stress than the as-extruded composite. Microhardness tests were performed on the tungsten and the metallic glass phase in both composites, respectively. The results from the microhardness measurements indicate that the strain rate sensitivity of the as-extruded composite is primarily a result of strain rate sensitivity of the tungsten phase.

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Effect of strain rate on plastic flow in Zr-based metallic-glass-reinforced porous tungsten matrix composites

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