Deformation Twinning Induced High Tensile Ductility of a Gradient Nanograined Cu-Based Alloy

Deformation Twinning Induced High Tensile Ductility of a Gradient Nanograined Cu-Based Alloy

We investigated the tensile properties of gradient nanograined Cu and CuAl samples prepared by plastic deformation. Tensile tests showed that the gradient nanograined Cu-4.5Al sample exhibits a uniform elongation of ~22% without any cracks, while the uniform elongation of the gradient nanograined Cu...

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Main Authors: Junjie Wang, Nairong Tao
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Nanomaterials
Subjects:
nanograins
ductility
twinning
grain coarsening
Online Access:https://www.mdpi.com/2079-4991/11/9/2451
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spelling doaj-621ad6771bf640999fb42127ee86d1cf2021-09-26T00:49:38ZengMDPI AGNanomaterials2079-49912021-09-01112451245110.3390/nano11092451Deformation Twinning Induced High Tensile Ductility of a Gradient Nanograined Cu-Based AlloyJunjie Wang0Nairong Tao1Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaWe investigated the tensile properties of gradient nanograined Cu and CuAl samples prepared by plastic deformation. Tensile tests showed that the gradient nanograined Cu-4.5Al sample exhibits a uniform elongation of ~22% without any cracks, while the uniform elongation of the gradient nanograined Cu sample is only ~18%. Numerous mechanical twinning retards the softening of the nanograins and accommodates a high tensile ductility in the gradient nanograined Cu-4.5Al sample. This work indicates that mechanical twinning is a potential deformation mechanism to achieve high tensile ductility of nanograined materials.https://www.mdpi.com/2079-4991/11/9/2451nanograinsductilitytwinninggrain coarsening
collection DOAJ
language English
format Article
sources DOAJ
author Junjie Wang
Nairong Tao
spellingShingle Junjie Wang
Nairong Tao
Deformation Twinning Induced High Tensile Ductility of a Gradient Nanograined Cu-Based Alloy
Nanomaterials
nanograins
ductility
twinning
grain coarsening
author_facet Junjie Wang
Nairong Tao
author_sort Junjie Wang
title Deformation Twinning Induced High Tensile Ductility of a Gradient Nanograined Cu-Based Alloy
title_short Deformation Twinning Induced High Tensile Ductility of a Gradient Nanograined Cu-Based Alloy
title_full Deformation Twinning Induced High Tensile Ductility of a Gradient Nanograined Cu-Based Alloy
title_fullStr Deformation Twinning Induced High Tensile Ductility of a Gradient Nanograined Cu-Based Alloy
title_full_unstemmed Deformation Twinning Induced High Tensile Ductility of a Gradient Nanograined Cu-Based Alloy
title_sort deformation twinning induced high tensile ductility of a gradient nanograined cu-based alloy
publisher MDPI AG
series Nanomaterials
issn 2079-4991
publishDate 2021-09-01
description We investigated the tensile properties of gradient nanograined Cu and CuAl samples prepared by plastic deformation. Tensile tests showed that the gradient nanograined Cu-4.5Al sample exhibits a uniform elongation of ~22% without any cracks, while the uniform elongation of the gradient nanograined Cu sample is only ~18%. Numerous mechanical twinning retards the softening of the nanograins and accommodates a high tensile ductility in the gradient nanograined Cu-4.5Al sample. This work indicates that mechanical twinning is a potential deformation mechanism to achieve high tensile ductility of nanograined materials.
topic nanograins
ductility
twinning
grain coarsening
url https://www.mdpi.com/2079-4991/11/9/2451
work_keys_str_mv AT junjiewang deformationtwinninginducedhightensileductilityofagradientnanograinedcubasedalloy
AT nairongtao deformationtwinninginducedhightensileductilityofagradientnanograinedcubasedalloy
_version_ 1716869704788738048

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