TY - JOUR
T1 - Dislocation Microstructures in Fatiqued Copper Polycrystals
AU - Winter, A.T.
AU - Pedersen, Ole Bøcker
AU - Rasmussen, K.V.
PY - 1981
Y1 - 1981
N2 - Dislocation structures characteristic of persistent slip bands were observed in the interior of polycrystalline copper after fatigue. At low strain amplitudes, within the plateau on the cyclic stress-strain curve, only structures identical to those seen in single crystals were observed. This allows the stress amplitude of the plateau to be calculated. At higher strain amplitudes, above the plateau, more complex structures were found. Further work will be needed to establish the nature of these new structures but it seems clear that the increase in stress amplitude is connected with their appearance.
AB - Dislocation structures characteristic of persistent slip bands were observed in the interior of polycrystalline copper after fatigue. At low strain amplitudes, within the plateau on the cyclic stress-strain curve, only structures identical to those seen in single crystals were observed. This allows the stress amplitude of the plateau to be calculated. At higher strain amplitudes, above the plateau, more complex structures were found. Further work will be needed to establish the nature of these new structures but it seems clear that the increase in stress amplitude is connected with their appearance.
U2 - 10.1016/0001-6160(81)90117-6
DO - 10.1016/0001-6160(81)90117-6
M3 - Journal article
VL - 29
SP - 735
EP - 748
JO - Acta Metallurgica
JF - Acta Metallurgica
SN - 0001-6160
IS - 5
ER -