Three-dimensional imaging of dislocations in a Ti-35mass%Nb alloy by electron tomography

Sato, Kazuhisa; Semboshi, Satoshi; Konno, Toyohiko J.

Materials, 2015, 8(4), 1924-1933

アクセス数:283件（2025-09-30 06:42 集計）

固定URL: https://hdl.handle.net/11094/89419

閲覧可能ファイル 

ファイル フォーマット 利用条件 サイズ 閲覧回数 利用開始日 説明 information
Mater_8_4_1924 pdf なし 6.94 MB 63 2022.10.31  
Creative Commons : 表示

論文情報

ファイル出力 EndNote Basic出力 Mendeley出力

タイトル
Three-dimensional imaging of dislocations in a Ti-35mass%Nb alloy by electron tomography
著者
NRID
1000070314424 1000070314424
ORCID
0000-0001-9078-2541 0000-0001-9078-2541
researchmap permalink
read0158304 read0158304
Scopus Author ID
55552977400 55552977400
著者名
Sato, Kazuhisa
NRID
1000000364026 1000000364026
著者名
Semboshi, Satoshi
NRID
1000090260447 1000090260447
著者名
Konno, Toyohiko J.
キーワード等
3D configurations
Dislocations
Electron tomography
Scanning transmission electron microscopy (STEM)
Ti-Nb
内容
Sato K, Semboshi S, Konno TJ. Three-Dimensional Imaging of Dislocations in a Ti–35mass%Nb Alloy by Electron Tomography. Materials. 2015; 8(4):1924-1933. https://doi.org/10.3390/ma8041924.
抄録
We have studied three-dimensional (3D) configurations of dislocations in the β phase of a Ti-35mass%Nb alloy by means of single-axis tilt tomography using bright-field scanning transmission electron microscopy (BF-STEM). To visualize dislocations, the hh0 systematic reflections were excited throughout tilt-series acquisition with the maximum tilt angle of 70°. Dislocations in the β grains were clearly reconstructed by the weighted back-projection algorithm. The slip planes of the dislocations were deduced by rotating the reconstructed volumes with the aid of selected area electron diffraction patterns. It was found that BF-STEM images with relatively low contrasts, taken along low-order zone axes, are capable to reproduce and preserve the quality of reconstructed image of dislocations. We also found that tilt angles as low as 40° are practically acceptable to visualize 3D configurations of dislocations, while there exists limitation in resolution due to the existence of a large missing wedge.
出版者
MDPI
収録物名
Materials
巻(号)
8(4)
ページ
1924-1933
刊行年月
2015-04-21
言語
英語
ハンドルURL
https://hdl.handle.net/11094/89419
eISSN
19961944
関連情報 (isIdenticalTo)
DOI (出版社版)
https://doi.org/10.3390/ma8041924
アクセス権
open access
権利情報
This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ
Version of Record
カテゴリ
学術雑誌論文 Journal Article