<i>In-Situ</i> Observation and Acoustic Emission Analysis for Corrosion Pitting of MgCl<sub>2</sub> Droplet in SUS304 Stainless Steel
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- Shiwa Mitsuharu
- National Institute for Materials Science
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- Masuda Hiroyuki
- National Institute for Materials Science
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- Yamawaki Hisashi
- National Institute for Materials Science
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- Ito Kaita
- Department of Materials Engineering, School of Engineering, The University of Tokyo
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- Enoki Manabu
- Department of Materials Engineering, School of Engineering, The University of Tokyo
Bibliographic Information
- Other Title
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- In-Situ Observation and Acoustic Emission Analysis for Corrosion Pitting of MgCl₂ Droplet in SUS304 Stainless Steel
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Abstract
Acoustic emission with near-field detection and optical video microscope monitoring was proposed to investigate the pitting corrosion caused by a small magnesium-chloride droplet. Four types of the detected waveforms were characterized by the wavelet analysis to investigate the corrosion of work-hardened SUS304 stainless steel. After high-activity AE signals observed, the corrosion product sheet grew with or without low-activity AE signals. With the cross-section observations, the detected AE signals were mainly attributed to longitudinal and transverse cracking around the covered pitting, cracking of the oxidation products, and the early stage of corrosion potential fluctuation.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 53 (6), 1069-1074, 2012
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390001204250393728
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- NII Article ID
- 10030630074
- 130004824893
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 023682179
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed
