TY - JOUR
T1 - Diffusion of 3D-migrating self-interstitial clusters in diluted and concentrated Fe-Cr alloys
AU - Terentyev, Dmitry
AU - Olsson, Par
AU - Malerba, Lorenzo
A2 - Bonny, Giovanni
N1 - Score = 10
PY - 2009/4/30
Y1 - 2009/4/30
N2 - We show, using atomic-level simulations, that the mobility of small 3D-migrating self-interstitial atom (SIA) clusters produced in displacement cascades is significantly reduced in concentrated Fe-Cr alloys (up to 15%Cr) as compared to Fe. The presence of alpha' precipitates, on the other hand, is only expected to provide scattering centers for interstitial-type defects, whose formation inside the precipitates is energetically unfavorable. The significant reduction in the mobility of 3D-migrating SIA clusters is expected to have an important impact on the microstructure evolution of high-Cr steels, depending on Cr concentration. (C) 2009 Elsevier B.V. All rights reserved.
AB - We show, using atomic-level simulations, that the mobility of small 3D-migrating self-interstitial atom (SIA) clusters produced in displacement cascades is significantly reduced in concentrated Fe-Cr alloys (up to 15%Cr) as compared to Fe. The presence of alpha' precipitates, on the other hand, is only expected to provide scattering centers for interstitial-type defects, whose formation inside the precipitates is energetically unfavorable. The significant reduction in the mobility of 3D-migrating SIA clusters is expected to have an important impact on the microstructure evolution of high-Cr steels, depending on Cr concentration. (C) 2009 Elsevier B.V. All rights reserved.
KW - Iron-Chromium Alloys
KW - microstructural evolution
KW - displacement cascades
KW - resistivity recovery
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_100842
UR - http://knowledgecentre.sckcen.be/so2/bibref/6187
U2 - 10.1016/j.jnucmat.2008.12.076
DO - 10.1016/j.jnucmat.2008.12.076
M3 - Article
SN - 0022-3115
VL - 386-388
SP - 140
EP - 142
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
ER -