TY - JOUR
T1 - Direct observation of the shear APB interface in Fe3Al by HREM
AU - Shindo, D.
AU - Yoo, M. H.
AU - Hanada, S.
AU - Hiraga, K.
N1 - Funding Information:
ACKNOWLEDGMENTS The second author (MY) would like to gratefully acknowledge the financial support provided by the Ministry of Education, Science and Culture, Japan, during his stay at the Institute for Materials Research, Tohoku University. This research was, in part, sponsored by the Division of Materials Sciences, U.S. Department of Energy, under contact DE-AC05-840R21400 with Martin Marietta Energy Systems, Tnc.
PY - 1991/12
Y1 - 1991/12
N2 - Atomic arrangements at a nearest neighbour anti-phase boundary (APB), on the (1(formula presented)0) plane, connected by 1/2[111] superpartials in Fe3Al were directly observed in an edge-on view using high resolution electron microscopy (HREM). In HREM images, Al atom positions projected along the [110] direction were revealed as white dots. A single step on the APB interface, which is related to a jog on the partial dislocation line, was identified directly from the geometrical patterns of the white dots. Detailed comparisons of the experimental data with simulated images indicated that the apparent relaxation of atomic rows at the APB is very localized to its interface even at the step.
AB - Atomic arrangements at a nearest neighbour anti-phase boundary (APB), on the (1(formula presented)0) plane, connected by 1/2[111] superpartials in Fe3Al were directly observed in an edge-on view using high resolution electron microscopy (HREM). In HREM images, Al atom positions projected along the [110] direction were revealed as white dots. A single step on the APB interface, which is related to a jog on the partial dislocation line, was identified directly from the geometrical patterns of the white dots. Detailed comparisons of the experimental data with simulated images indicated that the apparent relaxation of atomic rows at the APB is very localized to its interface even at the step.
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U2 - 10.1080/01418619108225349
DO - 10.1080/01418619108225349
M3 - Article
AN - SCOPUS:0026403752
VL - 64
SP - 1281
EP - 1290
JO - Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
JF - Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
SN - 0141-8610
IS - 6
ER -