Effects of cooling rate and sub-Tg annealing on Ni80P20 metallic glass: A molecular dynamic (MD) study

被引：8

作者：

Hayat, Fateh ^{[1
]}

Yin, Jian ^{[2
]}

Tabassum, Aasma ^{[1
]}

Hou, Huaiyu ^{[2
]}

Lan, Si ^{[1
]}

Feng, Tao ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Herbert Gleiter Inst Nano Sci, 200 Xiaolingwei Ave, Nanjing 210094, Peoples R China

[2] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, 200 Xiaolingwei Ave, Nanjing 210094, Peoples R China

来源：

COMPUTATIONAL MATERIALS SCIENCE | 2020年 / 179卷

基金：

中国国家自然科学基金;

关键词：

Glass transition temperature; Sub-T-g annealing; Molecular dynamic (MD) simulations; Cooling rate; Mean square displacement; MECHANICAL-PROPERTIES; STRUCTURAL MODEL; ATOMIC-STRUCTURE; RANDOM PACKINGS; SIMPLE LIQUIDS; STABILITY; GEOMETRY;

D O I：

10.1016/j.commatsci.2020.109681

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In present work Molecular dynamic (MD) simulations have been employed to simulate the Ni80P20 metallic glass at different cooling rates and with Sub-T-g annealing during the cooling process, first time to study the effects of cooling rate and Sub-T-g annealing on Ni80P20 metallic glass. Sub-T-g annealing method during the cooling process and cooling rate influences on structural relaxation, coordination, dynamical behavior, icosahedra environment and average cluster energy of Ni80P20 metallic glass. Structural relaxation was studied through the average potential energy of the system which decreased on slow cooling rates and with Sub-T-g annealing. Dynamical behavior of Ni80P20 metallic glass was investigated through diffusivity. The solute centered icosahedra clusters < 0, 0, 12, 0 >, and < 0, 2, 8, 2 > enhanced by low cooling rate and with Sub-T-g annealing.

引用

页数：9

共 39 条

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[Anonymous], [No title captured]

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[Anonymous], [No title captured]

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