TY - JOUR
T1 - Destruction processes of large stacking fault tetrahedra induced by direct interaction with gliding dislocations
AU - Matsukawa, Y.
AU - Osetsky, Yu N.
AU - Stoller, R. E.
AU - Zinkle, S. J.
N1 - Funding Information:
This research was sponsored by Office of Fusion Energy Sciences, US Department of Energy, under contract DE-ACO5-00OR22725 with UT-Battelle, LLC. We are grateful to Ms Kathy Yarborough for specimen preparation, Mr Cecil Carmichael for furnace operation for heat treatments, and Dr Neal Evans for maintenance of TEM. The authors also thank Dr B.N. Singh, Risø National Laboratory, for valuable discussions and comments.
PY - 2006/6/1
Y1 - 2006/6/1
N2 - The destruction process of large non-truncated stacking fault tetrahedra (SFTs) induced by gliding dislocations was examined by in situ transmission electron microscope straining experiments. Three different destruction processes were observed: a triangular Frank loop remained after the collapse (Type 1), the whole SFT was incorporated into a gliding dislocation as multiple super jog segments (Type 2), and an apex portion of the original SFT remained as a smaller SFT while the base portion was annihilated (Type 3). The remnants of Type 1 and 2 destruction processes were similar to those of previous models proposed by Kimura, indicating that these processes are based on dislocation reactions as assumed in Kimura models. On contrary, the Type 3 process, which was entirely different from Kimura models, is occasionally accompanied by vacancy migration.
AB - The destruction process of large non-truncated stacking fault tetrahedra (SFTs) induced by gliding dislocations was examined by in situ transmission electron microscope straining experiments. Three different destruction processes were observed: a triangular Frank loop remained after the collapse (Type 1), the whole SFT was incorporated into a gliding dislocation as multiple super jog segments (Type 2), and an apex portion of the original SFT remained as a smaller SFT while the base portion was annihilated (Type 3). The remnants of Type 1 and 2 destruction processes were similar to those of previous models proposed by Kimura, indicating that these processes are based on dislocation reactions as assumed in Kimura models. On contrary, the Type 3 process, which was entirely different from Kimura models, is occasionally accompanied by vacancy migration.
KW - D0400
KW - E0300
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U2 - 10.1016/j.jnucmat.2006.02.003
DO - 10.1016/j.jnucmat.2006.02.003
M3 - Article
AN - SCOPUS:33747081388
VL - 351
SP - 285
EP - 294
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
SN - 0022-3115
IS - 1-3
ER -