Four-terminal measurement of the distribution of electrical resistance across stress corrosion cracking

Noritaka Yusa; Hidetoshi Hashizume

doi:10.1016/j.ndteint.2011.06.004

Four-terminal measurement of the distribution of electrical resistance across stress corrosion cracking

Noritaka Yusa, Hidetoshi Hashizume

ENG - Quantum Science and Energy Engineering

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	544-546
Number of pages	3
Journal	NDT and E International
Volume	44
Issue number	7
DOIs	https://doi.org/10.1016/j.ndteint.2011.06.004
Publication status	Published - 2011 Nov 1

Keywords

Austenitic stainless steel
Contacts
Electrical properties
Electromagnetic nondestructive evaluation
Metals and alloys
Simulation and modeling

ASJC Scopus subject areas

Materials Science(all)
Mechanical Engineering
Condensed Matter Physics

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AU - Yusa, Noritaka

AU - Hashizume, Hidetoshi

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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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EP - 546

JO - NDT International

JF - NDT International

SN - 0963-8695

IS - 7

ER -

Four-terminal measurement of the distribution of electrical resistance across stress corrosion cracking

Abstract

Keywords

ASJC Scopus subject areas

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