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...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2021-09-01
|
Series: | Nanomaterials |
Subjects: | |
Online Access: | https://www.mdpi.com/2079-4991/11/9/2451 |
id |
doaj-621ad6771bf640999fb42127ee86d1cf |
---|---|
record_format |
Article |
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 |