TY - JOUR
T1 - Annealing strengthening in a dilute Mg-Zn-Ca sheet alloy
AU - Zeng, Z.R.
AU - Zhu, Y.M.
AU - Bian, M.Z.
AU - Xu, S.W.
AU - Davies, C.H.J.
AU - Birbilis, N.
AU - Nie, J.F.
PY - 2015
Y1 - 2015
N2 - Magnesium sheet alloy of dilute composition, Mg–0.3Zn–0.1Ca (at.%), does not exhibit any hardening response during heating. However, an annealing treatment at 80–200 C, after some plastic strain in tension, leads to a remarkable strengthening, rather than softening, effect. By using electron backscattered diffraction and scanning transmission electron microscopy, it is found that the strengthening effect is caused by the pinning of gliding basal dislocations by GP zones and possibly solute atoms segregated to the dislocations.
AB - Magnesium sheet alloy of dilute composition, Mg–0.3Zn–0.1Ca (at.%), does not exhibit any hardening response during heating. However, an annealing treatment at 80–200 C, after some plastic strain in tension, leads to a remarkable strengthening, rather than softening, effect. By using electron backscattered diffraction and scanning transmission electron microscopy, it is found that the strengthening effect is caused by the pinning of gliding basal dislocations by GP zones and possibly solute atoms segregated to the dislocations.
UR - http://goo.gl/xbCMM5
U2 - 10.1016/j.scriptamat.2015.06.002
DO - 10.1016/j.scriptamat.2015.06.002
M3 - Article
VL - 107
SP - 127
EP - 130
JO - Scripta Materialia
JF - Scripta Materialia
SN - 1359-6462
ER -