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 -