Stacking-fault energy effect on zero-strain deformation twinning in nanocrystalline Cu-Zn alloys

X.L. Ma; H. Zhou; J. Narayan; Y.T. Zhu

doi:10.1016/j.scriptamat.2015.07.027

Stacking-fault energy effect on zero-strain deformation twinning in nanocrystalline Cu-Zn alloys

X.L. Ma, H. Zhou, J. Narayan, Y.T. Zhu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

32 Citations (Scopus)

Abstract

It has been reported that most deformation twins in nanocrystalline face-centered-cubic metals do not produce macroscopic strain. Here we report the decrease of zero-strain deformation twinning with decreasing stacking-fault energy. One of the two major mechanisms that produce zero-strain twinning is cooperative slip of three partials under external applied stress. Lower stacking-fault energy weakens this mechanism and statistically reduces the fraction of twins with zero-strain.

Original language	English
Article number	10739
Pages (from-to)	89-93
Journal	Scripta Materialia
Volume	109
Online published	29 Jul 2015
DOIs	https://doi.org/10.1016/j.scriptamat.2015.07.027
Publication status	Published - Dec 2015
Externally published	Yes

Research Keywords

Deformation twin
Nanocrystalline alloy
Stacking-fault energy
Zero-strain twinning

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title = "Stacking-fault energy effect on zero-strain deformation twinning in nanocrystalline Cu-Zn alloys",

abstract = "It has been reported that most deformation twins in nanocrystalline face-centered-cubic metals do not produce macroscopic strain. Here we report the decrease of zero-strain deformation twinning with decreasing stacking-fault energy. One of the two major mechanisms that produce zero-strain twinning is cooperative slip of three partials under external applied stress. Lower stacking-fault energy weakens this mechanism and statistically reduces the fraction of twins with zero-strain.",

keywords = "Deformation twin, Nanocrystalline alloy, Stacking-fault energy, Zero-strain twinning, Deformation twin, Nanocrystalline alloy, Stacking-fault energy, Zero-strain twinning, Deformation twin, Nanocrystalline alloy, Stacking-fault energy, Zero-strain twinning",

author = "X.L. Ma and H. Zhou and J. Narayan and Y.T. Zhu",

year = "2015",

month = dec,

doi = "10.1016/j.scriptamat.2015.07.027",

language = "English",

volume = "109",

pages = "89--93",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

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TY - JOUR

T1 - Stacking-fault energy effect on zero-strain deformation twinning in nanocrystalline Cu-Zn alloys

AU - Ma, X.L.

AU - Zhou, H.

AU - Narayan, J.

AU - Zhu, Y.T.

PY - 2015/12

Y1 - 2015/12

N2 - It has been reported that most deformation twins in nanocrystalline face-centered-cubic metals do not produce macroscopic strain. Here we report the decrease of zero-strain deformation twinning with decreasing stacking-fault energy. One of the two major mechanisms that produce zero-strain twinning is cooperative slip of three partials under external applied stress. Lower stacking-fault energy weakens this mechanism and statistically reduces the fraction of twins with zero-strain.

AB - It has been reported that most deformation twins in nanocrystalline face-centered-cubic metals do not produce macroscopic strain. Here we report the decrease of zero-strain deformation twinning with decreasing stacking-fault energy. One of the two major mechanisms that produce zero-strain twinning is cooperative slip of three partials under external applied stress. Lower stacking-fault energy weakens this mechanism and statistically reduces the fraction of twins with zero-strain.

KW - Deformation twin

KW - Nanocrystalline alloy

KW - Stacking-fault energy

KW - Zero-strain twinning

KW - Deformation twin

KW - Nanocrystalline alloy

KW - Stacking-fault energy

KW - Zero-strain twinning

KW - Deformation twin

KW - Nanocrystalline alloy

KW - Stacking-fault energy

KW - Zero-strain twinning

UR - http://www.scopus.com/inward/record.url?scp=84940435795&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84940435795&origin=recordpage

U2 - 10.1016/j.scriptamat.2015.07.027

DO - 10.1016/j.scriptamat.2015.07.027

M3 - RGC 21 - Publication in refereed journal

SN - 1359-6462

VL - 109

SP - 89

EP - 93

JO - Scripta Materialia

JF - Scripta Materialia

M1 - 10739

ER -

Stacking-fault energy effect on zero-strain deformation twinning in nanocrystalline Cu-Zn alloys

Abstract

Research Keywords

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