학술논문
Evaluation of susceptibility to stress corrosion cracking based on non-linear eddy current method.
Document Type
Article
Author
Source
Subject
*STRAINS & stresses (Mechanics)
*CORROSION & anti-corrosives
*EDDY current testing
*NONLINEAR systems
*ALLOYS
*MAGNETIC properties of metals
*FEASIBILITY studies
*MAGNETIZATION
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Language
ISSN
1383-5416
Abstract
This paper discusses the feasibility of non-linear eddy current method to evaluate material degradations of austenitic stainless steels associated with irradiation assisted stress corrosion cracking (IASCC). For the purpose, tensile tests at elevated temperatures are conducted using model alloys simulating radiation-induced segregation (RIS), and magnetization curves of the tensile test specimens are measured by vibrating sample magnetometer (VSM). Microstructure of magnetization of the tensile test specimens is observed by magnetic force microscopy (MFM). Finally, non-linear eddy current method is carried out for the tensile test specimens. It is shown that the 3rd higher harmonic ratio of the pick-up signal is related to the targeted nominal strain. [ABSTRACT FROM AUTHOR]