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Abstract：
Failures due to intergranular corrosion in components of austenitic stainless steel have always been a tough problem in engineering practice. In this paper, the collinear wave mixing was investigated to evaluate the intergranular corrosion in austenitic stainless steel. An acoustic nonlinearity parameter related to the bispectrum, the propagation distance and the amplitudes of fundamental waves in measured signal is proposed. Nonlinear acoustic measurements were conducted on four tubes with different degree of intergranular corrosion. The experimental results demonstrated that the proposed acoustic nonlinearity parameter is sensitive to intergranular corrosion in samples, and is well correlated with the degree of damage. © 2014 Elsevier Ltd. All rights reserved.
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NDT and E International
ISSN： 0963-8695
Year： 2015
Volume： 69
Page： 1-8
4 . 2 0 0
JCR@2022
ESI Discipline： MATERIALS SCIENCE;
ESI HC Threshold：319
JCR Journal Grade：1
Cited Count：
SCOPUS Cited Count： 41
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 6
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