TY - JOUR
T1 - Transmission electron microscopic observation of thermally introduced planar faults in Fe-35 mol.% Al alloys
AU - Yoshimi, Kyosuke
AU - Hanada, Shuji
AU - Onuma, Tsuyoshi
AU - Yoo, Man H.
N1 - Funding Information:
This research was sponsored by Grant-in-Aid for Scientific Research on Priority Area from the Ministry of Education, Science and Culture, Japan, and the Division of Materials Science, US Department of Energy, under contract DE-AC05-840R21400 with Martin Marietta Energy Systems, Inc.
PY - 1996/2
Y1 - 1996/2
N2 - Thermally introduced planar faults are investigated both in an Fe-35 mol.%Al binary alloy and in B, Cr, Pd and W added ternary alloys using transmission electron microscopy. Air cooling of the alloys from 1273 K followed by annealing at 698 K for 120 h introduces two types of planar faults. One type is the antiphase boundary (APB), which is observed in all of the alloys. The other is the complex planar fault having both APB and stacking fault characters, which is observed in only the B-added alloy. The formation of the APBs is envisaged from a collapse of the lattice owing to vacancy condensation on triple layers of (111) planes. The size, distribution and planarity of the APBs are affected by ternary element addition.
AB - Thermally introduced planar faults are investigated both in an Fe-35 mol.%Al binary alloy and in B, Cr, Pd and W added ternary alloys using transmission electron microscopy. Air cooling of the alloys from 1273 K followed by annealing at 698 K for 120 h introduces two types of planar faults. One type is the antiphase boundary (APB), which is observed in all of the alloys. The other is the complex planar fault having both APB and stacking fault characters, which is observed in only the B-added alloy. The formation of the APBs is envisaged from a collapse of the lattice owing to vacancy condensation on triple layers of (111) planes. The size, distribution and planarity of the APBs are affected by ternary element addition.
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U2 - 10.1080/01418619608244393
DO - 10.1080/01418619608244393
M3 - Article
AN - SCOPUS:0039927892
SN - 0141-8610
VL - 73
SP - 443
EP - 456
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
IS - 2
ER -