Influence of icosahedral order on the second peak splitting of pair distribution function for Mg70Zn30 metallic glass

被引：49

作者：

Liang, Yong-Chao ^{[1
]}

Liu, Rang-Su ^{[1
]}

Mo, Yun-Fei ^{[1
]}

Liu, Hai-Rong ^{[2
]}

Tian, Ze-An ^{[1
]}

Zhou, Qun-yi ^{[1
]}

Zhang, Hai-Tao ^{[1
,5
]}

Zhou, Li-Li ^{[3
]}

Hou, Zhao-Yang ^{[4
]}

Peng, Ping ^{[2
]}

机构：

[1] Hunan Univ, Sch Phys & Microelect Sci, Changsha 410082, Hunan, Peoples R China

[2] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China

[3] Gannan Med Univ, Dept Informat Engn, Ganzhou 341000, Peoples R China

[4] Changan Univ, Dept Appl Phys, Xian 710064, Peoples R China

[5] Changsha Univ, Dept Phys, Changsha 410022, Hunan, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 597卷

基金：

中国国家自然科学基金;

关键词：

Second peak splitting; Pair distribution function; Mg-Zn metallic glass; Molecular dynamics simulation; MEDIUM-RANGE ORDER; MOLECULAR-DYNAMICS; ATOMIC PACKING; LIQUID; SOLIDIFICATION; SIMULATION; EVOLUTION; PHASE;

D O I：

10.1016/j.jallcom.2014.01.052

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A simulation study has been performed for the rapid solidification process of Mg70Zn30 metallic glass by using molecular dynamics method. Several structural analysis methods have been adopted to characterize and analyze the atomic configurations in the system. Based on the geometry analysis of the icosahedron and the intercross-shared (IS) cluster linked of two icosahedra, it is confirmed that the second peak splitting in pair distribution function (PDF) g(r) curve of Mg70Zn30 metallic glass is mainly caused by the IS clusters, and its corresponding to R-2/R-1 = 1.69, R-3/R-1 = 1.98 and R-4/R-1 = 2.57, can be reasonably explained. (C) 2014 Published by Elsevier B.V.

引用

页码：269 / 274

页数：6

共 5 条

[1] Icosahedral medium-range order formed in Mg70Zn30 metallic glass: a larger-scale molecular dynamics simulation
Hou Zhao-Yang
Liu Rang-Su
Tian Ze-An
Wang Jin-Guo
CHINESE PHYSICS B, 2011, 20 (06)
[2] Icosahedral medium-range order formed in Mg70Zn30 metallic glass: a larger-scale molecular dynamics simulation
侯兆阳
刘让苏
田泽安
王晋国
Chinese Physics B, 2011, 20 (06) : 346 - 352
[3] Influence from connection of atomic clusters on the second peak splitting of pair distribution function in metallic glasses
Li, Feng
Zhang, Jingqi
Xu, Xinyu
Wang, Hui
Feng, Liang
Chang, Hui
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2023, 600
[4] The deformation and transformation of icosahedron in Mg70Zn30 metallic glasses
Liang, Yongchao
Zhang, Yuehong
Yu, Bangyi
Liu, Rangsu
Xie, Quan
Tian, Zean
CHEMICAL PHYSICS LETTERS, 2018, 703 : 39 - 43
[5] Structural evolutions and hereditary characteristics of icosahedral nano-clusters formed in Mg70Zn30 alloys during rapid solidification processes
Liang, Yong-Chao
Liu, Rang-Su
Xie, Quan
Tian, Ze-An
Mo, Yun-Fei
Zhang, Hai-Tao
Liu, Hai-Rong
Hou, Zhao-Yang
Zhou, Li-Li
Peng, Ping
SCIENTIFIC REPORTS, 2017, 7 : 1 - 11

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