Adiabatic shear localization in nanostructured face centered cubic metals under uniaxial compression

Jianguo Li; Tao Suo; Chongxiang Huang; Yulong Li; Hongtao Wang; Jiabin Liu

doi:10.1016/j.matdes.2016.05.081

Adiabatic shear localization in nanostructured face centered cubic metals under uniaxial compression

Jianguo Li, Tao Suo, Chongxiang Huang, Yulong Li, Hongtao Wang, Jiabin Liu

科研成果: 期刊稿件 › 文章 › 同行评审

24 引用（Scopus）

摘要

In this work, the dynamic behavior of nanostructured Cu-11.14% Al alloy with face-centered cubic (FCC) structure has been investigated using split Hopkinson pressure bar. At high strain rate uniaxial compression (strain rate ~ 4 × 10³ s^-1), a sharp stress collapse was observed in the plastic regime of the specimens. Post-loading examinations verified the appearance of adiabatic shear band (ASB), which has rarely been observed in FCC metals under uniaxial loading. Adiabatic heating within the ASBs has led to recrystallization, resulting in remarkably refined and defect-free nanocrystalline grains. The occurrence of ASBs in such an FCC alloy can be explained based on established mechanistic models.

源语言	英语
页（从-至）	262-267
页数	6
期刊	Materials and Design
卷	105
DOI	https://doi.org/10.1016/j.matdes.2016.05.081
出版状态	已出版 - 5 9月 2016

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10.1016/j.matdes.2016.05.081

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title = "Adiabatic shear localization in nanostructured face centered cubic metals under uniaxial compression",

abstract = "In this work, the dynamic behavior of nanostructured Cu-11.14% Al alloy with face-centered cubic (FCC) structure has been investigated using split Hopkinson pressure bar. At high strain rate uniaxial compression (strain rate ~ 4 × 103 s-1), a sharp stress collapse was observed in the plastic regime of the specimens. Post-loading examinations verified the appearance of adiabatic shear band (ASB), which has rarely been observed in FCC metals under uniaxial loading. Adiabatic heating within the ASBs has led to recrystallization, resulting in remarkably refined and defect-free nanocrystalline grains. The occurrence of ASBs in such an FCC alloy can be explained based on established mechanistic models.",

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author = "Jianguo Li and Tao Suo and Chongxiang Huang and Yulong Li and Hongtao Wang and Jiabin Liu",

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doi = "10.1016/j.matdes.2016.05.081",

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T1 - Adiabatic shear localization in nanostructured face centered cubic metals under uniaxial compression

AU - Li, Jianguo

AU - Suo, Tao

AU - Huang, Chongxiang

AU - Li, Yulong

AU - Wang, Hongtao

AU - Liu, Jiabin

PY - 2016/9/5

Y1 - 2016/9/5

N2 - In this work, the dynamic behavior of nanostructured Cu-11.14% Al alloy with face-centered cubic (FCC) structure has been investigated using split Hopkinson pressure bar. At high strain rate uniaxial compression (strain rate ~ 4 × 103 s-1), a sharp stress collapse was observed in the plastic regime of the specimens. Post-loading examinations verified the appearance of adiabatic shear band (ASB), which has rarely been observed in FCC metals under uniaxial loading. Adiabatic heating within the ASBs has led to recrystallization, resulting in remarkably refined and defect-free nanocrystalline grains. The occurrence of ASBs in such an FCC alloy can be explained based on established mechanistic models.

AB - In this work, the dynamic behavior of nanostructured Cu-11.14% Al alloy with face-centered cubic (FCC) structure has been investigated using split Hopkinson pressure bar. At high strain rate uniaxial compression (strain rate ~ 4 × 103 s-1), a sharp stress collapse was observed in the plastic regime of the specimens. Post-loading examinations verified the appearance of adiabatic shear band (ASB), which has rarely been observed in FCC metals under uniaxial loading. Adiabatic heating within the ASBs has led to recrystallization, resulting in remarkably refined and defect-free nanocrystalline grains. The occurrence of ASBs in such an FCC alloy can be explained based on established mechanistic models.

KW - Adiabatic shear band

KW - FCC structure

KW - Hopkinson bar

KW - Nanostructured

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DO - 10.1016/j.matdes.2016.05.081

M3 - 文章

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SN - 0264-1275

VL - 105

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EP - 267

JO - Materials and Design

JF - Materials and Design

ER -

Adiabatic shear localization in nanostructured face centered cubic metals under uniaxial compression

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