Fabrication and property correlation of a Co-based bulk metallic glass with ultrahigh hardness, elastic moduli, and thermal stability

Ju Wang; Ran Li; Tao Zhang

doi:10.3969/j.issn.1001-9731.2015.24.004

Fabrication and property correlation of a Co-based bulk metallic glass with ultrahigh hardness, elastic moduli, and thermal stability

Ju Wang
, Ran Li^*
, Tao Zhang

^*此作品的通讯作者

材料科学与工程学院

Beihang University

科研成果: 期刊稿件 › 文章 › 同行评审

摘要

A Co₂₃Ir₆Ru₃Re₂₀Ta₁₀B₃₅ bulk metallic glass (BMG) with critical diameter of glass formation up to 1 mm is synthesized by copper mold casting. The glassy alloy exhibits ultrahigh glass transition temperature of 1021 K, Young's modulus of 277 GPa, shear modulus of 103 GPa, and Vickers hardness of 16.4 GPa. Glass transition temperature and shear modulus are the highest values for reported bulk metallic glass so far. Several universal criteria correlated with the thermal properties, elastic constants and hardness are validated for the BMG combining with the data of 39 typical BMGs.

源语言	英语
页（从-至）	24023-24026
页数	4
期刊	Gongneng Cailiao/Journal of Functional Materials
卷	46
期	24
DOI	https://doi.org/10.3969/j.issn.1001-9731.2015.24.004
出版状态	已出版 - 30 12月 2015

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title = "Fabrication and property correlation of a Co-based bulk metallic glass with ultrahigh hardness, elastic moduli, and thermal stability",

abstract = "A Co23Ir6Ru3Re20Ta10B35 bulk metallic glass (BMG) with critical diameter of glass formation up to 1 mm is synthesized by copper mold casting. The glassy alloy exhibits ultrahigh glass transition temperature of 1021 K, Young's modulus of 277 GPa, shear modulus of 103 GPa, and Vickers hardness of 16.4 GPa. Glass transition temperature and shear modulus are the highest values for reported bulk metallic glass so far. Several universal criteria correlated with the thermal properties, elastic constants and hardness are validated for the BMG combining with the data of 39 typical BMGs.",

keywords = "Bulk metallic glass, Co-based, Density, Hardness, Moduli",

author = "Ju Wang and Ran Li and Tao Zhang",

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doi = "10.3969/j.issn.1001-9731.2015.24.004",

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T1 - Fabrication and property correlation of a Co-based bulk metallic glass with ultrahigh hardness, elastic moduli, and thermal stability

AU - Wang, Ju

AU - Li, Ran

AU - Zhang, Tao

PY - 2015/12/30

Y1 - 2015/12/30

N2 - A Co23Ir6Ru3Re20Ta10B35 bulk metallic glass (BMG) with critical diameter of glass formation up to 1 mm is synthesized by copper mold casting. The glassy alloy exhibits ultrahigh glass transition temperature of 1021 K, Young's modulus of 277 GPa, shear modulus of 103 GPa, and Vickers hardness of 16.4 GPa. Glass transition temperature and shear modulus are the highest values for reported bulk metallic glass so far. Several universal criteria correlated with the thermal properties, elastic constants and hardness are validated for the BMG combining with the data of 39 typical BMGs.

AB - A Co23Ir6Ru3Re20Ta10B35 bulk metallic glass (BMG) with critical diameter of glass formation up to 1 mm is synthesized by copper mold casting. The glassy alloy exhibits ultrahigh glass transition temperature of 1021 K, Young's modulus of 277 GPa, shear modulus of 103 GPa, and Vickers hardness of 16.4 GPa. Glass transition temperature and shear modulus are the highest values for reported bulk metallic glass so far. Several universal criteria correlated with the thermal properties, elastic constants and hardness are validated for the BMG combining with the data of 39 typical BMGs.

KW - Bulk metallic glass

KW - Co-based

KW - Density

KW - Hardness

KW - Moduli

UR - https://www.scopus.com/pages/publications/84960971237

U2 - 10.3969/j.issn.1001-9731.2015.24.004

DO - 10.3969/j.issn.1001-9731.2015.24.004

M3 - 文章

AN - SCOPUS:84960971237

SN - 1001-9731

VL - 46

SP - 24023

EP - 24026

JO - Gongneng Cailiao/Journal of Functional Materials

JF - Gongneng Cailiao/Journal of Functional Materials

IS - 24

ER -

Fabrication and property correlation of a Co-based bulk metallic glass with ultrahigh hardness, elastic moduli, and thermal stability

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