Affiliations: [a] Department of Quantum Science and Energy Engineering,
Graduate School of Engineering, Tohoku University, Miyagi, Japan
Correspondence:
[*]
Corresponding author: Noritaka Yusa, Department of Quantum
Science and Energy Engineering, Graduate School of Engineering, Tohoku
University, 6-6-01-2, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8579,
Japan. Tel.: +81 22 7956319; Fax: +81 22 7956319; E-mail:
noritaka.yusa@qse.tohoku.ac.jp
Abstract: This study proposes a method to fabricate artificial flaws whose
response to non-destructive testing, especially electromagnetic non-destructive
testing, is the same as that of stress corrosion cracking. Stacked metallic
films containing through-grooves are sandwiched between metallic blocks and
then bonded using solid state bonding. The profiles of the through-grooves are
accurately controlled with the aid of the lithography technique, which allows a
three-dimensional discontinuity to be embedded inside a material. Since the
spatial distribution of the discontinuity is small compared to the spatial
resolution of non-destructive testing methods, the method allows the response
of stress corrosion cracking to be simulated. Specimens are fabricated using
type 316 L austenitic stainless steel, and validated using eddy current testing.
Keywords: Non-destructive testing and evaluation, electromagnetic non-destructive testing, finite element simulations, electric resistance, modelling
