In-Situ Precipitated nanocrystal Beneficial to Enhanced Plasticity of Cu-Zr Based bulk Metallic Glasses

Lincai Zhang; Feng Jiang; Dehong Zhang; Lin He; Jun Sun; Jitang Fan; Zhefeng Zhang

doi:10.1002/adem.200800123

In-Situ Precipitated nanocrystal Beneficial to Enhanced Plasticity of Cu-Zr Based bulk Metallic Glasses

Lincai Zhang^*, Feng Jiang, Dehong Zhang, Lin He, Jun Sun, Jitang Fan, Zhefeng Zhang

^*Corresponding author for this work

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

32 Citations (Scopus)

Abstract

A study was conducted to prepare a series of Cu₄₆Zr ₄₇Al₇ alloys with different microstructures, including full glassy structure and marginal BMG, containing small in-situ precipitated nanocrystals and BMG composite containing large CuZr crystals. Compression and bending tests were conducted, to evaluate plasticity of these composites. The effect of the nanocrystals on the plasticity of Cu-Zr-based BMG and its composites were systematically investigated. The tilt casting method in an arc furnace was used to prepare BMG and its composites. Electromagnetic string function was also introduced to the investigation, by adding a current loop under the water-cooled copper crucible. The alloy ingots with nominal compositions Cu₄₆Zr₄₇Al₇ were prepared by arc melting the mixtures of ultrasonically cleansed Zr, Cu, and Al pieces.

Original language	English
Pages (from-to)	943-950
Number of pages	8
Journal	Advanced Engineering Materials
Volume	10
Issue number	10
DOIs	https://doi.org/10.1002/adem.200800123
Publication status	Published - Oct 2008
Externally published	Yes

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title = "In-Situ Precipitated nanocrystal Beneficial to Enhanced Plasticity of Cu-Zr Based bulk Metallic Glasses",

abstract = "A study was conducted to prepare a series of Cu46Zr 47Al7 alloys with different microstructures, including full glassy structure and marginal BMG, containing small in-situ precipitated nanocrystals and BMG composite containing large CuZr crystals. Compression and bending tests were conducted, to evaluate plasticity of these composites. The effect of the nanocrystals on the plasticity of Cu-Zr-based BMG and its composites were systematically investigated. The tilt casting method in an arc furnace was used to prepare BMG and its composites. Electromagnetic string function was also introduced to the investigation, by adding a current loop under the water-cooled copper crucible. The alloy ingots with nominal compositions Cu46Zr47Al7 were prepared by arc melting the mixtures of ultrasonically cleansed Zr, Cu, and Al pieces.",

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AU - Zhang, Lincai

AU - Jiang, Feng

AU - Zhang, Dehong

AU - He, Lin

AU - Sun, Jun

AU - Fan, Jitang

AU - Zhang, Zhefeng

PY - 2008/10

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AB - A study was conducted to prepare a series of Cu46Zr 47Al7 alloys with different microstructures, including full glassy structure and marginal BMG, containing small in-situ precipitated nanocrystals and BMG composite containing large CuZr crystals. Compression and bending tests were conducted, to evaluate plasticity of these composites. The effect of the nanocrystals on the plasticity of Cu-Zr-based BMG and its composites were systematically investigated. The tilt casting method in an arc furnace was used to prepare BMG and its composites. Electromagnetic string function was also introduced to the investigation, by adding a current loop under the water-cooled copper crucible. The alloy ingots with nominal compositions Cu46Zr47Al7 were prepared by arc melting the mixtures of ultrasonically cleansed Zr, Cu, and Al pieces.

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In-Situ Precipitated nanocrystal Beneficial to Enhanced Plasticity of Cu-Zr Based bulk Metallic Glasses

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