Dynamic mechanical behavior of (La0.7Ce0.3)65Al10Co25 bulk metallic glass: Influence of the physical aging and heat treatment

L. T. Zhang; J. M. Pelletier; J. C. Qiao

doi:10.1016/j.jallcom.2021.159271

Dynamic mechanical behavior of (La_0.7Ce_0.3)₆₅Al₁₀Co₂₅ bulk metallic glass: Influence of the physical aging and heat treatment

L. T. Zhang
, J. M. Pelletier
, J. C. Qiao

School of Mechanics,Civil Engineering and Architecture

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

10 Scopus citations

Abstract

Dynamic mechanical relaxation behavior of (La_0.7Ce_0.3)₆₅Al₁₀Co₂₅ bulk metallic glass was studied by using dynamic mechanical analysis (DMA). The experimental results demonstrated that (La_0.7Ce_0.3)₆₅Al₁₀Co₂₅ bulk metallic glass displays a pronounced slow β relaxation. Influence of the physical aging and heat treatment on the internal friction of the metallic glass were also analyzed. Physical aging below the glass transition temperature Tg and in-situ heat treatment introduce a decrease of the atomic mobility of metallic glasses, which is closely associated with the annihilation of defects (structural heterogeneity) of the metallic glasses.

Original language	English
Article number	159271
Journal	Journal of Alloys and Compounds
Volume	869
DOIs	https://doi.org/10.1016/j.jallcom.2021.159271
State	Published - 15 Jul 2021

Keywords

Bulk metallic glass
Loss factor
Mechanical relaxation
Physical aging
Structural heterogeneity

Access to Document

10.1016/j.jallcom.2021.159271

Cite this

@article{4b16f3ac2a33429cab9a3c4257e7eaa9,

title = "Dynamic mechanical behavior of (La0.7Ce0.3)65Al10Co25 bulk metallic glass: Influence of the physical aging and heat treatment",

abstract = "Dynamic mechanical relaxation behavior of (La0.7Ce0.3)65Al10Co25 bulk metallic glass was studied by using dynamic mechanical analysis (DMA). The experimental results demonstrated that (La0.7Ce0.3)65Al10Co25 bulk metallic glass displays a pronounced slow β relaxation. Influence of the physical aging and heat treatment on the internal friction of the metallic glass were also analyzed. Physical aging below the glass transition temperature Tg and in-situ heat treatment introduce a decrease of the atomic mobility of metallic glasses, which is closely associated with the annihilation of defects (structural heterogeneity) of the metallic glasses.",

keywords = "Bulk metallic glass, Loss factor, Mechanical relaxation, Physical aging, Structural heterogeneity",

author = "Zhang, \{L. T.\} and Pelletier, \{J. M.\} and Qiao, \{J. C.\}",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = jul,

day = "15",

doi = "10.1016/j.jallcom.2021.159271",

language = "英语",

volume = "869",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Dynamic mechanical behavior of (La0.7Ce0.3)65Al10Co25 bulk metallic glass

T2 - Influence of the physical aging and heat treatment

AU - Zhang, L. T.

AU - Pelletier, J. M.

AU - Qiao, J. C.

PY - 2021/7/15

Y1 - 2021/7/15

N2 - Dynamic mechanical relaxation behavior of (La0.7Ce0.3)65Al10Co25 bulk metallic glass was studied by using dynamic mechanical analysis (DMA). The experimental results demonstrated that (La0.7Ce0.3)65Al10Co25 bulk metallic glass displays a pronounced slow β relaxation. Influence of the physical aging and heat treatment on the internal friction of the metallic glass were also analyzed. Physical aging below the glass transition temperature Tg and in-situ heat treatment introduce a decrease of the atomic mobility of metallic glasses, which is closely associated with the annihilation of defects (structural heterogeneity) of the metallic glasses.

AB - Dynamic mechanical relaxation behavior of (La0.7Ce0.3)65Al10Co25 bulk metallic glass was studied by using dynamic mechanical analysis (DMA). The experimental results demonstrated that (La0.7Ce0.3)65Al10Co25 bulk metallic glass displays a pronounced slow β relaxation. Influence of the physical aging and heat treatment on the internal friction of the metallic glass were also analyzed. Physical aging below the glass transition temperature Tg and in-situ heat treatment introduce a decrease of the atomic mobility of metallic glasses, which is closely associated with the annihilation of defects (structural heterogeneity) of the metallic glasses.

KW - Bulk metallic glass

KW - Loss factor

KW - Mechanical relaxation

KW - Physical aging

KW - Structural heterogeneity

UR - https://www.scopus.com/pages/publications/85101739151

U2 - 10.1016/j.jallcom.2021.159271

DO - 10.1016/j.jallcom.2021.159271

M3 - 文章

AN - SCOPUS:85101739151

SN - 0925-8388

VL - 869

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 159271

ER -

Dynamic mechanical behavior of (La_0.7Ce_0.3)₆₅Al₁₀Co₂₅ bulk metallic glass: Influence of the physical aging and heat treatment

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this