A convergence relationship between slip transmission and grain boundary migration in nanocrystalline nickel

Zhihao Jiang; Zhouwen Jiang; Shengyun Yuan; Ningning Liang; Shun Xu; Xiang Chen; Jiamiao Liang; Tao Suo; Yong Zhang

doi:10.1016/j.matchar.2021.111295

A convergence relationship between slip transmission and grain boundary migration in nanocrystalline nickel

Zhihao Jiang, Zhouwen Jiang, Shengyun Yuan, Ningning Liang, Shun Xu, Xiang Chen, Jiamiao Liang, Tao Suo, Yong Zhang^*

^*Corresponding author for this work

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

Abstract

In the present study, a geometric factor M proposed to predict slip transmission across grain boundaries (GBs) was lent to explore the factors influencing the stress-driven GB migration behaviors in nanocrystalline nickel under high strain rate loading. By confronting the relationship between slip systems in neighboring grain of the samples before and after high-rate loading, it is found that the geometric factor M of the remaining nano-grains in the impacted samples shifts to smaller values. This apparent correlation between GB migration and the geometric factor M can be understood in terms of two factors: the angle α between slip plane traces on the GB and the residual dislocation deposited at the GB plane to ensure the Burgers vector unity. Both contribute to slip transmission across GBs.

Original language	English
Article number	111295
Journal	Materials Characterization
Volume	178
DOIs	https://doi.org/10.1016/j.matchar.2021.111295
Publication status	Published - Aug 2021
Externally published	Yes

Keywords

High strain rate
Nanocrystalline
Nickel
Slip transmission
Stress-driven grain boundary migration

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10.1016/j.matchar.2021.111295

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title = "A convergence relationship between slip transmission and grain boundary migration in nanocrystalline nickel",

abstract = "In the present study, a geometric factor M proposed to predict slip transmission across grain boundaries (GBs) was lent to explore the factors influencing the stress-driven GB migration behaviors in nanocrystalline nickel under high strain rate loading. By confronting the relationship between slip systems in neighboring grain of the samples before and after high-rate loading, it is found that the geometric factor M of the remaining nano-grains in the impacted samples shifts to smaller values. This apparent correlation between GB migration and the geometric factor M can be understood in terms of two factors: the angle α between slip plane traces on the GB and the residual dislocation deposited at the GB plane to ensure the Burgers vector unity. Both contribute to slip transmission across GBs.",

keywords = "High strain rate, Nanocrystalline, Nickel, Slip transmission, Stress-driven grain boundary migration",

author = "Zhihao Jiang and Zhouwen Jiang and Shengyun Yuan and Ningning Liang and Shun Xu and Xiang Chen and Jiamiao Liang and Tao Suo and Yong Zhang",

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year = "2021",

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doi = "10.1016/j.matchar.2021.111295",

language = "English",

volume = "178",

journal = "Materials Characterization",

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TY - JOUR

T1 - A convergence relationship between slip transmission and grain boundary migration in nanocrystalline nickel

AU - Jiang, Zhihao

AU - Jiang, Zhouwen

AU - Yuan, Shengyun

AU - Liang, Ningning

AU - Xu, Shun

AU - Chen, Xiang

AU - Liang, Jiamiao

AU - Suo, Tao

AU - Zhang, Yong

PY - 2021/8

Y1 - 2021/8

N2 - In the present study, a geometric factor M proposed to predict slip transmission across grain boundaries (GBs) was lent to explore the factors influencing the stress-driven GB migration behaviors in nanocrystalline nickel under high strain rate loading. By confronting the relationship between slip systems in neighboring grain of the samples before and after high-rate loading, it is found that the geometric factor M of the remaining nano-grains in the impacted samples shifts to smaller values. This apparent correlation between GB migration and the geometric factor M can be understood in terms of two factors: the angle α between slip plane traces on the GB and the residual dislocation deposited at the GB plane to ensure the Burgers vector unity. Both contribute to slip transmission across GBs.

AB - In the present study, a geometric factor M proposed to predict slip transmission across grain boundaries (GBs) was lent to explore the factors influencing the stress-driven GB migration behaviors in nanocrystalline nickel under high strain rate loading. By confronting the relationship between slip systems in neighboring grain of the samples before and after high-rate loading, it is found that the geometric factor M of the remaining nano-grains in the impacted samples shifts to smaller values. This apparent correlation between GB migration and the geometric factor M can be understood in terms of two factors: the angle α between slip plane traces on the GB and the residual dislocation deposited at the GB plane to ensure the Burgers vector unity. Both contribute to slip transmission across GBs.

KW - High strain rate

KW - Nanocrystalline

KW - Nickel

KW - Slip transmission

KW - Stress-driven grain boundary migration

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U2 - 10.1016/j.matchar.2021.111295

DO - 10.1016/j.matchar.2021.111295

M3 - Article

AN - SCOPUS:85110092678

SN - 1044-5803

VL - 178

JO - Materials Characterization

JF - Materials Characterization

M1 - 111295

ER -

A convergence relationship between slip transmission and grain boundary migration in nanocrystalline nickel

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