TY - JOUR
T1 - Four-terminal measurement of the distribution of electrical resistance across stress corrosion cracking
AU - Yusa, Noritaka
AU - Hashizume, Hidetoshi
N1 - Funding Information:
This study was performed as a part of “Project on the enhancement of aging management and maintenance of nuclear power plants” supported by Nuclear and Industrial Safety Agency, METI, Japan .
PY - 2011/11
Y1 - 2011/11
N2 - This study measures electrical resistance of a stress corrosion crack directly by the four-terminal method to discuss appropriate modeling from the viewpoint of electromagnetic nondestructive evaluation. Two type-316 stainless steel plate specimens containing artificial stress corrosion cracks were prepared, and columnar samples containing penetrating cracks were cut from the plates for the measurements. The results obtained agree with recent reports discussing appropriate numerical modeling of stress corrosion cracking on the basis of finite element simulations. In contrast, this study also reveals that it is not always valid to assume that a stress corrosion crack has uniform conductivity internally.
AB - This study measures electrical resistance of a stress corrosion crack directly by the four-terminal method to discuss appropriate modeling from the viewpoint of electromagnetic nondestructive evaluation. Two type-316 stainless steel plate specimens containing artificial stress corrosion cracks were prepared, and columnar samples containing penetrating cracks were cut from the plates for the measurements. The results obtained agree with recent reports discussing appropriate numerical modeling of stress corrosion cracking on the basis of finite element simulations. In contrast, this study also reveals that it is not always valid to assume that a stress corrosion crack has uniform conductivity internally.
KW - Austenitic stainless steel
KW - Contacts
KW - Electrical properties
KW - Electromagnetic nondestructive evaluation
KW - Metals and alloys
KW - Simulation and modeling
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U2 - 10.1016/j.ndteint.2011.06.004
DO - 10.1016/j.ndteint.2011.06.004
M3 - Article
AN - SCOPUS:79959637313
SN - 0963-8695
VL - 44
SP - 544
EP - 546
JO - NDT and E International
JF - NDT and E International
IS - 7
ER -