Effects of Yttrium Addition on Structure,Mechanical Properties and Corrosion Resistance of Bulk Glassy Zr-Co-Al-（Y） Alloys

Li DuanXian; Yuan Zizhou; Kang Jian; Zhang Xiangyun

doi:10.15980/j.tzzz.2015.05.021

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Effects of Yttrium Addition on Structure,Mechanical Properties and Corrosion Resistance of Bulk Glassy Zr-Co-Al-（Y） Alloys
Vol. 35, Issue 5, Pages: 525-529(2015)
Published： 2015 ，
DOI： 10.15980/j.tzzz.2015.05.021

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[1]李断弦,袁子洲,康健,张香云.Y对Zr_(56)Co_(28)Al_(16)非晶合金结构和性能的影响[J].特种铸造及有色合金,2015,35(05):525-529.

Li DuanXian, Yuan Zizhou, Kang Jian, et al. Effects of Yttrium Addition on Structure,Mechanical Properties and Corrosion Resistance of Bulk Glassy Zr-Co-Al-（Y） Alloys. [J]. Special Casting & Nonferrous Alloys 35(5):525-529(2015)
[1]李断弦,袁子洲,康健,张香云.Y对Zr_(56)Co_(28)Al_(16)非晶合金结构和性能的影响[J].特种铸造及有色合金,2015,35(05):525-529. DOI： 10.15980/j.tzzz.2015.05.021.

Li DuanXian, Yuan Zizhou, Kang Jian, et al. Effects of Yttrium Addition on Structure,Mechanical Properties and Corrosion Resistance of Bulk Glassy Zr-Co-Al-（Y） Alloys. [J]. Special Casting & Nonferrous Alloys 35(5):525-529(2015) DOI： 10.15980/j.tzzz.2015.05.021.

摘要

采用铜模吸铸法制备了一系列不含Ni和Cu的（Zr56Co28Al16）100-xYx（x=0

4）大块非晶合金（BMGs）

对ZrCo-Al-（Y）系BMGs的结构、力学性能、耐蚀性能作了研究。结果表明

随Y含量增加

过冷液相区宽度（△Tx）从x=0的50.0K增加到x=2的59.2K;室温压缩断裂强度（σf）和塑性变形量（εp）分别从x=0的1 785 MPa、0

增加到x=2的1 965 MPa、4.1%。（Zr56Co28Al16）98Y2非晶合金在磷酸盐缓冲液中表现出良好的耐蚀性能

且具有76GPa的低杨氏模量。

Abstract

A series of（Zr56Co28Al16）100-xYx（x=0

4）bulk metallic glasses（BMGs）with Ni-free and Cu-free were prepared successfully using water-cooling copper mold method.Effects of yttrium addition on thermal stability

strucrure and mechanical properties of the bulk glassy Zr-Co-Al-（Y）alloys were investigated.The results indicate that the addition of Y can improve significantly the thermal stability and mechanical properties.The supercooled liquid region can be increased from 50K（x=0）to 59.2K（x=2）.Both of compressive fracture strength（σf）and plasticity strain（εp）are enhanced considerably from1 785 MPa

0 %（x=0）to 1 965 MPa

4.1%（x=2）.（Zr56Co28Al16）98Y2 amorphou alloy exhibits satisfied corrosion resistamce in phosphate solution with Youngs modulus of 76 GPa.