Inspection of stress corrosion cracking in welded stainless steel pipe using point-focusing electromagnetic-acoustic transducer

Nakamura, Nobutomo; Ashida, Kazuhiro; Takishita, Takashi et al.

NDT & E International, 2016, 83, 88-93

アクセス数:354件（2025-07-31 07:53 集計）

固定URL: https://hdl.handle.net/11094/84478

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タイトル
Inspection of stress corrosion cracking in welded stainless steel pipe using point-focusing electromagnetic-acoustic transducer
著者
NRID
1000050452404 1000050452404
researchmap permalink
nnakamura nnakamura
Scopus Author ID
7403356186 7403356186
ORCID
0000-0002-5338-842X 0000-0002-5338-842X
著者名
Nakamura, Nobutomo
著者名
Ashida, Kazuhiro
著者名
Takishita, Takashi
NRID
1000090252626 1000090252626
researchmap permalink
read0042771 read0042771
Scopus Author ID
35563683500 35563683500
著者名
Ogi, Hirotsugu
NRID
1000080112027 1000080112027
著者名
Hirao, Masahiko
キーワード等
Electromagnetic acoustic transducer
Point focusing
SV wave
Weld
Stress corrosion cracking
抄録
Point-focusing electromagnetic-acoustic transducers (PF-EMATs) for shear-vertical (SV) waves were developed for crack inspection of stainless-steel pipes. The transducer has improved defect detectability by accumulating SV waves generated by concentric line sources at a focal point in phase. An optimum frequency for defect detection was found to be 2 MHz, with which a crack of 0.5 mm depth near a weld was clearly detected. The EMAT exhibited defect detectability comparable to that of a conventional phased-array piezoelectric transducer, indicating that this new EMAT is highly practical for the non-contacting evaluation of stress-corrosion cracking in stainless steels.
出版者
Elsevier Ltd
収録物名
NDT & E International
巻(号)
83
ページ
88-93
刊行年月
2016-10
言語
英語
ハンドルURL
https://hdl.handle.net/11094/84478
PISSN
09638695
NCID
AA10816574
関連情報 (isVersionOf)
DOI (出版社版)
https://doi.org/10.1016/j.ndteint.2016.06.005
アクセス権
open access
権利情報
© 2016 Elsevier Ltd. This manuscript version is made available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
出版タイプ
Accepted Manuscript
カテゴリ
学術雑誌論文 Journal Article