TY - JOUR
T1 - Deformation and microstructure of neutron irradiated stainless steels with different stacking fault energy
AU - Li, Xiaoqiang
A2 - Al Mazouzi, Abderrahim
N1 - Score=10
PY - 2009/3
Y1 - 2009/3
N2 - In order to assess the effect of the stacking fault energy (SFE) on the neutron irradiation induced defects accumulation behaviour of stainless steels, it is important to detection and identification of the small defects in the each of the three irradiated alloys with different SFE by the transmission electron microscopy (TEM). The purpose of this paper is to illustrate the optimum experimental conditions necessary for obtaining the strain contrast images from the various types of defects, and then determine their type and nature. The results show that, only in the LSFE and Ref SFE alloys, the stacking fault tetrahedron (SFTs) are observed. The nature of the SFTs is vacancy. The dislocation loops are Frank and perfect loops including both vacancies and interstitials in the 3 model alloys. Most of the dislocation loops are vacancy type, and with increasing the SFE, the amount of the interstitial loops increases
AB - In order to assess the effect of the stacking fault energy (SFE) on the neutron irradiation induced defects accumulation behaviour of stainless steels, it is important to detection and identification of the small defects in the each of the three irradiated alloys with different SFE by the transmission electron microscopy (TEM). The purpose of this paper is to illustrate the optimum experimental conditions necessary for obtaining the strain contrast images from the various types of defects, and then determine their type and nature. The results show that, only in the LSFE and Ref SFE alloys, the stacking fault tetrahedron (SFTs) are observed. The nature of the SFTs is vacancy. The dislocation loops are Frank and perfect loops including both vacancies and interstitials in the 3 model alloys. Most of the dislocation loops are vacancy type, and with increasing the SFE, the amount of the interstitial loops increases
KW - Stainless steels
KW - neutron irradiation
KW - stacking fault energy
KW - transmission electron microscopy
KW - deformation mechanism
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_102391
U2 - 10.1016/j.jnucmat.2008.12.008
DO - 10.1016/j.jnucmat.2008.12.008
M3 - Article
SN - 0022-3115
VL - 385
SP - 329
EP - 333
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 2
ER -