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Zairyo-to-Kankyo
Vol. 73 (2024), No. 7

Zairyo-to-Kankyo Vol. 73 (2024), No. 7

ONLINE ISSN:	1881-9664
PRINT ISSN:	0917-0480
Publisher:	Japan Society of Corrosion Engineering

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Vol. 73 (2024)
1. No.7
2. No.6
3. No.5
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5. No.3
6. No.2
7. No.1
Vol. 72 (2023)
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Keyword Ranking

14 Sep. (Last 30 Days)

Zairyo-to-Kankyo Vol. 73 (2024), No. 7

My Thoughts on Corrosion and Corrosion Protection

Yoshikazu Akira

pp. 167-167

DOI:

10.3323/jcorr.73.167

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Article Title

My Thoughts on Corrosion and Corrosion Protection

Bibtex

Ris

Mechanism of Grooving Corrosion Resistance in Cu, Ti Added High Frequency Electric Resistance Welded Steel Pipes

Takuya Hara, Atsushi Sato, Kazushi Nakamura, Ryuji Uemori

pp. 168-174

DOI:

10.3323/jcorr.73.168

Abstract

In order to elucidate the grooving corrosion suppression mechanism of Cu and Ti added ERW steel pipes, welded portions were immersed in salt water after polishing without using the SPEED method, which electrolytically polishes the specimen using a non-aqueous electrolyte. Sulfides were observed using FIB processing. Before immersion, MnS and Ti₄C₂S₂ were observed. After immersion, Cu_7.2S₄ precipitated on the MnS on the immersed surface. Furthermore, Ti₄C₂S₂ did not dissolve. Addition of Ti produced insoluble Ti₄C₂S₂, which reduced the number density of MnS, and addition of Cu precipitated insoluble Cu_7.2S₄ on MnS, suppressing the dissolution of MnS.

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Article Title

Mechanism of Grooving Corrosion Resistance in Cu, Ti Added High Frequency Electric Resistance Welded Steel Pipes

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Ris

ToF-SIMS Analysis of MEA Contaminated by Corrosion of Stainless Steel Bipolar Plate in PEFC Operation

Ayumu Minoura, Masanobu Kumagai, Saki Kazawa, Runa Shirasawa, Hayato Sasaki, Hitoshi Yashiro, Masatsugu Murase

pp. 175-180

DOI:

10.3323/jcorr.73.175

Abstract

It has been pointed out that when stainless steel bipolar plates are used in PEFC, metal ions eluted due to corrosion contaminate the MEA and degrade cell performance. However, it was not clear whether the contamination mainly occurs from the anode side or the cathode side. In this study, a single cell was operated using bare type 304 stainless steel bipolar plates in contact with MEA and the cross sectional distribution of iron, chromium and nickel in the MEA was analyzed by ToF-SIMS. The results showed that iron, chromium and nickel were enriched in the anode side GDL and CCM. These results indicated that the leaching of metal ions from the anode side stainless steel bipolar plate was the main cause of MEA contamination.

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Article Title

ToF-SIMS Analysis of MEA Contaminated by Corrosion of Stainless Steel Bipolar Plate in PEFC Operation

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14 Sep. (Last 30 Days)

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Effect of P Addition on the Corrosion Resistance of Steels Before and After Rust Formation

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Zairyo-to-Kankyo Vol. 73 (2024), No. 7

Keyword Ranking

fracture toughness grain size

reduction caco3 in electric furnace

https://doi.org/10.1007/s11663-020-01868-y.

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Zairyo-to-Kankyo Vol. 73 (2024), No. 7

My Thoughts on Corrosion and Corrosion Protection

Share it with SNS

Mechanism of Grooving Corrosion Resistance in Cu, Ti Added High Frequency Electric Resistance Welded Steel Pipes

Share it with SNS

ToF-SIMS Analysis of MEA Contaminated by Corrosion of Stainless Steel Bipolar Plate in PEFC Operation

Share it with SNS

Article Access Ranking

Non-Isothermal Reduction Kinetics Model of Self-Reducing Iron Ore Pellets

Effect of Wettability on Droplet Agglomeration in Two Immiscible Liquids

Effect of P Addition on the Corrosion Resistance of Steels Before and After Rust Formation

Effect of Manganese on Cryogenic Toughness of 7% Nickel-added Steels with Intermediate Heat Treatment

Effect of intercritical annealing on microstructure and toughness of medium-Mn steel with elongated prior-austenite grains formed via two-step hot rolling process

Thermodynamic Calculation of Solute Carbon and Nitrogen in Nb and Ti Added Extra-low Carbon Steels

Phonon mean free path of silicate glasses: a useful parameter to distinguish between framework and nonframework cations

Effect of Binder Adsorption Characteristics of Coal on Cold Strength for Ferro-coke Briquette

Solidification Characteristics and TiC Formation Behaviour in Alloy 800H

Effect of Exit Wear Length on the Behavior of Coherent Jet

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