<i>In-Situ</i> Observation and Acoustic Emission Analysis for SCC 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, Graduate School of Engineering, The University of Tokyo
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- Enoki Manabu
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo
Bibliographic Information
- Other Title
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- SUS304のMgCl<sub>2</sub>液滴中におけるSCC過程のその場観察とAE源の検討
- In-Situ Observation and Acoustic Emission Analysis for SCC of MgCl2 Droplet in SUS304 Stainless Steel
Abstract
Acoustic emission and optical video microscope monitoring was proposed to investigate the stress corrosion cracking of work-hardened SUS304 stainless steel caused by a small magnesium-chloride droplet. The crack propagation length could measure clearly under the droplet by VMS. The SCC started at 45–82 ks with pitting. The crack velocity was 3.2–4.7 µm/ks and it propagated almost continuously. AE signals were generated at early stage of SCC testing of 55 ks and 82 ks, after that they were generated discontinuously. With the SEM observations, the detected AE signals were mainly attributed to cracking of the oxidation products and discontinuous crack propagation at the falling-off surface grain.<br>
Journal
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- Journal of the Japan Institute of Metals and Materials
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Journal of the Japan Institute of Metals and Materials 76 (9), 535-540, 2012
The Japan Institute of Metals and Materials
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Keywords
Details 詳細情報について
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- CRID
- 1390282681458907008
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- NII Article ID
- 130004456330
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- COI
- 1:CAS:528:DC%2BC38Xhs1WmsbrP
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- ISSN
- 18806880
- 24337501
- 00214876
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed