Two-stage work-hardening of a transformable B2-enhanced metallic glass composite by molecular dynamics simulation

被引：0

作者：

Li, Shuxian ^{[1
]}

Wu, Jiaqing ^{[1
]}

Chen, Xinrao ^{[1
]}

Zhu, Mixun ^{[1
]}

Chen, Jinpeng ^{[1
]}

Xue, Peng ^{[2
]}

Huang, Yongjiang ^{[3
]}

Tan, Ming Jen ^{[4
]}

Yang, Yuanzheng ^{[1
]}

Fu, Xiaoling ^{[1
]}

机构：

[1] Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Peoples R China

[2] Ji Hua Lab, Dept Mat Sci & Technol, Foshan 528200, Guangdong, Peoples R China

[3] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

[4] Nanyang Technol Univ, Singapore Ctr Printing 3D, Sch Mech & Aerosp Engn, Singapore 639798, Singapore

来源：

COMPOSITES COMMUNICATIONS | 2024年 / 51卷

基金：

中国国家自然科学基金;

关键词：

Strain rate; Metallic glass matrix composite; Martensitic transformation; Molecular dynamics; MECHANICAL-PROPERTIES; PLASTIC-DEFORMATION; BEHAVIOR; SIZE;

D O I：

10.1016/j.coco.2024.102045

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The crystalline-amorphous interfaces play vital roles in affecting martensitic transformation, shear band nucleation and interface stability. Though both quasi-static and dynamic mechanical behaviors of shape memory enhanced bulk metallic glass composites have been studied via experiments, the atomic-level interactions among martensitic transformation, localized shear softening and interfacial strain concentration imposed by strain rate remain elusive. We employ molecular dynamics simulations to study strain rate effect on uniaxial compression behavior of transformable B2-CuZr enhanced bulk metallic glass composite. As strain rate increases, the proportion of martensitic transformation accelerates. During the competition among martensitic transformation induced-hardening, shear induced-softening and interface debonding, a two-stage work-hardening is observed, which is in agreement with experimental findings.

引用

页数：7

共 7 条

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SCRIPTA MATERIALIA, 2013, 69 (01) : 73 - 76
[2] Dislocation slip induced tensile plasticity and improved work-hardening capability of high-entropy metallic glass composite
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[3] Work-hardening behavior, strain rate sensitivity, and failure behavior of in situ CuZr-based metallic glass matrix composite
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JOURNAL OF MATERIALS SCIENCE, 2016, 51 (12) : 5992 - 6001
[4] Work-hardening and plastic deformation behavior of Ti-based bulk metallic glass composites with bimodal sized B2 particles
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INTERMETALLICS, 2015, 62 : 36 - 42
[5] Modeling of a two-stage polymerization considering glass fibre sizing using molecular dynamics
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NANOSCALE ADVANCES, 2022, 5 (01): : 106 - 118
[6] The effect of loading methods on the microstructural evolution and degree of strain localization in Cu50Zr50 metallic glass composite nanowires: A molecular dynamics simulation study
Katakareddi, Ganesh
Yedla, Natraj
JOURNAL OF MOLECULAR GRAPHICS & MODELLING, 2022, 115
[7] Molecular Dynamics Simulation of Femtosecond Laser Ablation of Cu50Zr50 Metallic Glass Based on Two-Temperature Model
Xu, Jingxiang
Xue, Dengke
Gaidai, Oleg
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Xu, Shaolin
PROCESSES, 2023, 11 (06)

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