Effect of Co addition on the shear viscosity of Fe-based bulk metallic glasses

Yunzhuo Lu; Yongjiang Huang; Jun Shen; Xing Lu; Zuoxiang Qin; Zhihua Zhang

doi:10.1016/j.jnoncrysol.2014.07.012

Effect of Co addition on the shear viscosity of Fe-based bulk metallic glasses

Yunzhuo Lu^*
, Yongjiang Huang
, Jun Shen
, Xing Lu
, Zuoxiang Qin
, Zhihua Zhang

^*Corresponding author for this work

Dalian Jiaotong University
Harbin Institute of Technology
Tongji University

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

20 Scopus citations

Abstract

In this work, a non-isothermal three-point bending creep test has been proposed for measuring the non-isothermal shear viscosity of Fe-Co-Cr-Mo-C-B-Y bulk metallic glasses (BMGs). The variation of the viscosity induced by Co addition has been discussed from the viewpoints of atomic packing density and metal-metalloid bonds. It has been found that the Co7 BMG alloy with highest viscosity exhibited the densest atomic structure and the strongest covalent-like metal-metalloid bonds, which could suppress the atomic viscous flow and thus dramatically enhance the viscosity.

Original language	English
Pages (from-to)	62-66
Number of pages	5
Journal	Journal of Non-Crystalline Solids
Volume	403
DOIs	https://doi.org/10.1016/j.jnoncrysol.2014.07.012
State	Published - 1 Nov 2014
Externally published	Yes

Keywords

Fe-based bulk metallic glass
Positron annihilation lifetime spectroscopy
Shear viscosity
Three-point bending creep test

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10.1016/j.jnoncrysol.2014.07.012

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title = "Effect of Co addition on the shear viscosity of Fe-based bulk metallic glasses",

abstract = "In this work, a non-isothermal three-point bending creep test has been proposed for measuring the non-isothermal shear viscosity of Fe-Co-Cr-Mo-C-B-Y bulk metallic glasses (BMGs). The variation of the viscosity induced by Co addition has been discussed from the viewpoints of atomic packing density and metal-metalloid bonds. It has been found that the Co7 BMG alloy with highest viscosity exhibited the densest atomic structure and the strongest covalent-like metal-metalloid bonds, which could suppress the atomic viscous flow and thus dramatically enhance the viscosity.",

keywords = "Fe-based bulk metallic glass, Positron annihilation lifetime spectroscopy, Shear viscosity, Three-point bending creep test",

author = "Yunzhuo Lu and Yongjiang Huang and Jun Shen and Xing Lu and Zuoxiang Qin and Zhihua Zhang",

year = "2014",

month = nov,

day = "1",

doi = "10.1016/j.jnoncrysol.2014.07.012",

language = "英语",

volume = "403",

pages = "62--66",

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TY - JOUR

T1 - Effect of Co addition on the shear viscosity of Fe-based bulk metallic glasses

AU - Lu, Yunzhuo

AU - Huang, Yongjiang

AU - Shen, Jun

AU - Lu, Xing

AU - Qin, Zuoxiang

AU - Zhang, Zhihua

PY - 2014/11/1

Y1 - 2014/11/1

N2 - In this work, a non-isothermal three-point bending creep test has been proposed for measuring the non-isothermal shear viscosity of Fe-Co-Cr-Mo-C-B-Y bulk metallic glasses (BMGs). The variation of the viscosity induced by Co addition has been discussed from the viewpoints of atomic packing density and metal-metalloid bonds. It has been found that the Co7 BMG alloy with highest viscosity exhibited the densest atomic structure and the strongest covalent-like metal-metalloid bonds, which could suppress the atomic viscous flow and thus dramatically enhance the viscosity.

AB - In this work, a non-isothermal three-point bending creep test has been proposed for measuring the non-isothermal shear viscosity of Fe-Co-Cr-Mo-C-B-Y bulk metallic glasses (BMGs). The variation of the viscosity induced by Co addition has been discussed from the viewpoints of atomic packing density and metal-metalloid bonds. It has been found that the Co7 BMG alloy with highest viscosity exhibited the densest atomic structure and the strongest covalent-like metal-metalloid bonds, which could suppress the atomic viscous flow and thus dramatically enhance the viscosity.

KW - Fe-based bulk metallic glass

KW - Positron annihilation lifetime spectroscopy

KW - Shear viscosity

KW - Three-point bending creep test

UR - https://www.scopus.com/pages/publications/84905270254

U2 - 10.1016/j.jnoncrysol.2014.07.012

DO - 10.1016/j.jnoncrysol.2014.07.012

M3 - 文章

AN - SCOPUS:84905270254

SN - 0022-3093

VL - 403

SP - 62

EP - 66

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

ER -

Effect of Co addition on the shear viscosity of Fe-based bulk metallic glasses

Abstract

Keywords

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