Detection and Characterization of Intergranular Stress Corrosion Cracking on Sensitized 304 Stainless Steel by Acoustic Emission Techniques

Xue Wei Mao; Jian Li; Xue Hui Wang; Wei Kui Wang

doi:10.4028/www.scientific.net/AMM.239-240.21

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Detection and Characterization of Intergranular Stress Corrosion Cracking on Sensitized 304 Stainless Steel by Acoustic Emission Techniques
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 239-240Detection and Characterization of Intergranular...

Detection and Characterization of Intergranular Stress Corrosion Cracking on Sensitized 304 Stainless Steel by Acoustic Emission Techniques

Abstract:

The present study was conducted on sensitized 304 stainless steels in 0.5mol/L Na₂S₂O₃ solution under the slow strain rate testing (SSRT). To monitor the evolution of intergranular stress corrosion cracking (IGSCC) occurring, acoustic emission (AE) technology was applied in this test. Besides, signal characteristics of different AE sources, including the dissolution along susceptible grain boundaries, the plastic deformation ahead of the crack tip and the mechanical fractures of material ligaments, were identified distinctly with fractography and clustering analysis.

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Periodical:

Applied Mechanics and Materials (Volumes 239-240)

Pages:

21-26

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.239-240.21

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Online since:

December 2012

Authors:

Xue Wei Mao, Jian Li, Xue Hui Wang, Wei Kui Wang

Keywords:

304 Stainless Steel, Acoustic Emission (AE), Characteristic Analysis, Intergranular Stress Corrosion Cracking

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