TY - JOUR
T1 - Microstructure of a Σ17b grain boundary in molybdenum
AU - Tsurekawa, Sadahiro
AU - Tanaka, Tomoaki
AU - Nakashima, Hideharu
AU - Yoshinaga, Hideo
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1994
Y1 - 1994
N2 - A Σ17b boundary in molybdenum has high fracture strength, though this boundary has a poor atom matching compared with Σ9 and Σ11 coincidence boundaries. In order to clarify the reason from the viewpoint of grain boundary structure, the transmission electron microscopy observations have been conducted. The grain boundary of (334) Σ17b is shown to be a plane matching boundary which is regarded as one of the low energy boundaries. Interface dislocations to assure the coherency at the boundary are present in addition to DSC dislocations. Such a coherent nature of the boundary structure due to the presence of the dislocations is considered to be responsible for the fairly high fracture strength of the boundary.
AB - A Σ17b boundary in molybdenum has high fracture strength, though this boundary has a poor atom matching compared with Σ9 and Σ11 coincidence boundaries. In order to clarify the reason from the viewpoint of grain boundary structure, the transmission electron microscopy observations have been conducted. The grain boundary of (334) Σ17b is shown to be a plane matching boundary which is regarded as one of the low energy boundaries. Interface dislocations to assure the coherency at the boundary are present in addition to DSC dislocations. Such a coherent nature of the boundary structure due to the presence of the dislocations is considered to be responsible for the fairly high fracture strength of the boundary.
UR - http://www.scopus.com/inward/record.url?scp=0028404868&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0028404868&partnerID=8YFLogxK
U2 - 10.2320/jinstmet1952.58.4_377
DO - 10.2320/jinstmet1952.58.4_377
M3 - Article
AN - SCOPUS:0028404868
SN - 0021-4876
VL - 58
SP - 377
EP - 381
JO - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
JF - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
IS - 4
ER -