The deformation mechanism of nanocrystalline nickel under high strain rate

Zhihao Jiang; Qianqian Wang; Yong Zhang; Tao Suo; Jun Wang; Jiamiao Liang

doi:10.1016/j.matlet.2021.130790

The deformation mechanism of nanocrystalline nickel under high strain rate

Zhihao Jiang, Qianqian Wang, Yong Zhang, Tao Suo, Jun Wang, Jiamiao Liang

School of Aeronautics

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

3 Scopus citations

Abstract

Understanding the deformation mechanisms of nanocrystalline is of great significance for its engineering applications. However, only a few studies focused on the deformation behavior of nanocrystalline at high strain rate. In this work, a high speed gas gun was applied to achieve high strain rate (~10⁶s⁻¹) deformation in nanocrystalline Ni with an average grain size of 35 nm. The deformed microstructure suggested that obvious stress-induced grain growth occurred. Nano-twinning and dislocation slipping were widely observed in the deformed structure. The underlying reasons for the prevalence of these two deformation mechanisms were also discussed.

Original language	English
Article number	130790
Journal	Materials Letters
Volume	305
DOIs	https://doi.org/10.1016/j.matlet.2021.130790
State	Published - 15 Dec 2021

Keywords

Defects
Deformation and fracture
Nanocrystalline materials

Access to Document

10.1016/j.matlet.2021.130790

Cite this

@article{49a383ab0dfa46cd81bd2305b3b9b45e,

title = "The deformation mechanism of nanocrystalline nickel under high strain rate",

abstract = "Understanding the deformation mechanisms of nanocrystalline is of great significance for its engineering applications. However, only a few studies focused on the deformation behavior of nanocrystalline at high strain rate. In this work, a high speed gas gun was applied to achieve high strain rate (~106s−1) deformation in nanocrystalline Ni with an average grain size of 35 nm. The deformed microstructure suggested that obvious stress-induced grain growth occurred. Nano-twinning and dislocation slipping were widely observed in the deformed structure. The underlying reasons for the prevalence of these two deformation mechanisms were also discussed.",

keywords = "Defects, Deformation and fracture, Nanocrystalline materials",

author = "Zhihao Jiang and Qianqian Wang and Yong Zhang and Tao Suo and Jun Wang and Jiamiao Liang",

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

year = "2021",

month = dec,

day = "15",

doi = "10.1016/j.matlet.2021.130790",

language = "英语",

volume = "305",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - The deformation mechanism of nanocrystalline nickel under high strain rate

AU - Jiang, Zhihao

AU - Wang, Qianqian

AU - Zhang, Yong

AU - Suo, Tao

AU - Wang, Jun

AU - Liang, Jiamiao

PY - 2021/12/15

Y1 - 2021/12/15

N2 - Understanding the deformation mechanisms of nanocrystalline is of great significance for its engineering applications. However, only a few studies focused on the deformation behavior of nanocrystalline at high strain rate. In this work, a high speed gas gun was applied to achieve high strain rate (~106s−1) deformation in nanocrystalline Ni with an average grain size of 35 nm. The deformed microstructure suggested that obvious stress-induced grain growth occurred. Nano-twinning and dislocation slipping were widely observed in the deformed structure. The underlying reasons for the prevalence of these two deformation mechanisms were also discussed.

AB - Understanding the deformation mechanisms of nanocrystalline is of great significance for its engineering applications. However, only a few studies focused on the deformation behavior of nanocrystalline at high strain rate. In this work, a high speed gas gun was applied to achieve high strain rate (~106s−1) deformation in nanocrystalline Ni with an average grain size of 35 nm. The deformed microstructure suggested that obvious stress-induced grain growth occurred. Nano-twinning and dislocation slipping were widely observed in the deformed structure. The underlying reasons for the prevalence of these two deformation mechanisms were also discussed.

KW - Defects

KW - Deformation and fracture

KW - Nanocrystalline materials

UR - http://www.scopus.com/inward/record.url?scp=85114157778&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2021.130790

DO - 10.1016/j.matlet.2021.130790

M3 - 文章

AN - SCOPUS:85114157778

SN - 0167-577X

VL - 305

JO - Materials Letters

JF - Materials Letters

M1 - 130790

ER -

The deformation mechanism of nanocrystalline nickel under high strain rate

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this