Formation of bulk metallic glasses from Cu-Zr based alloys with yttrium addition

Bing Li; Jinshan Li; Xinhui Fan; Jian Chen

doi:10.1016/s1875-5372(14)60124-7

Formation of bulk metallic glasses from Cu-Zr based alloys with yttrium addition

Bing Li, Jinshan Li, Xinhui Fan, Jian Chen

School of Materials Sience and Engineering

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

11 Scopus citations

Abstract

Cu₄₆Zr₄₆Al₈ bulk metallic glass (BMG) was prepared by low purity sponge zirconium instead of high purity crystal bar zirconium, and via the microalloying of adding a small amount of yttrium. The results show that the glass forming ability (GFA) and the thermal stability of the Cu₄₆Zr₄₆Al₈ alloy are improved by yttrium addition. When the addition amount of Y is 2at% and 3at%, the enhancement of GFA is most significant. The compressive fracture strength of Y microalloyed BMG is more than 2 GPa, which is much higher than that of BMG alloy produced with high purity raw materials, but its plasticity deteriorates obviously.

Original language	English
Pages (from-to)	1558-1561
Number of pages	4
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	43
Issue number	7
DOIs	https://doi.org/10.1016/s1875-5372(14)60124-7
State	Published - 1 Jul 2014

Keywords

Bulk metallic glass
Glass forming ability
Low purity
Yttrium addition

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10.1016/s1875-5372(14)60124-7

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title = "Formation of bulk metallic glasses from Cu-Zr based alloys with yttrium addition",

abstract = "Cu46Zr46Al8 bulk metallic glass (BMG) was prepared by low purity sponge zirconium instead of high purity crystal bar zirconium, and via the microalloying of adding a small amount of yttrium. The results show that the glass forming ability (GFA) and the thermal stability of the Cu46Zr46Al8 alloy are improved by yttrium addition. When the addition amount of Y is 2at% and 3at%, the enhancement of GFA is most significant. The compressive fracture strength of Y microalloyed BMG is more than 2 GPa, which is much higher than that of BMG alloy produced with high purity raw materials, but its plasticity deteriorates obviously.",

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author = "Bing Li and Jinshan Li and Xinhui Fan and Jian Chen",

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T1 - Formation of bulk metallic glasses from Cu-Zr based alloys with yttrium addition

AU - Li, Bing

AU - Li, Jinshan

AU - Fan, Xinhui

AU - Chen, Jian

PY - 2014/7/1

Y1 - 2014/7/1

N2 - Cu46Zr46Al8 bulk metallic glass (BMG) was prepared by low purity sponge zirconium instead of high purity crystal bar zirconium, and via the microalloying of adding a small amount of yttrium. The results show that the glass forming ability (GFA) and the thermal stability of the Cu46Zr46Al8 alloy are improved by yttrium addition. When the addition amount of Y is 2at% and 3at%, the enhancement of GFA is most significant. The compressive fracture strength of Y microalloyed BMG is more than 2 GPa, which is much higher than that of BMG alloy produced with high purity raw materials, but its plasticity deteriorates obviously.

AB - Cu46Zr46Al8 bulk metallic glass (BMG) was prepared by low purity sponge zirconium instead of high purity crystal bar zirconium, and via the microalloying of adding a small amount of yttrium. The results show that the glass forming ability (GFA) and the thermal stability of the Cu46Zr46Al8 alloy are improved by yttrium addition. When the addition amount of Y is 2at% and 3at%, the enhancement of GFA is most significant. The compressive fracture strength of Y microalloyed BMG is more than 2 GPa, which is much higher than that of BMG alloy produced with high purity raw materials, but its plasticity deteriorates obviously.

KW - Bulk metallic glass

KW - Glass forming ability

KW - Low purity

KW - Yttrium addition

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Formation of bulk metallic glasses from Cu-Zr based alloys with yttrium addition

Abstract

Keywords

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