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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)
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Keyword Ranking

21 Nov. (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

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

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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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21 Nov. (Last 30 Days)

In-situ Observation of Precipitation and Growth of MnS Inclusions during Solidification of a High Sulfur Steel

ISIJ International Advance Publication
Measurement of Bubble Size Distribution and Generation Position of Bubbles Generated during Smelting Reduction of Iron Oxide-containing Slag

ISIJ International Advance Publication
Injection of hydrogenous gases into the blast furnace tuyeres for reducing CO₂ emissions: a review

ISIJ International Advance Publication
Development of a Low-carbon Sintering Process Technology and Its Application to a Pilot-scale Sintering Testing

ISIJ International Vol.64(2024), No.13
Precipitation Behavior of MnS from Molten Iron to Al₂O₃ during Solidification

Tetsu-to-Hagané Advance Publication
Molecular dynamics simulation of viscosity of the CaO, MgO and Al₂O₃ melts

ISIJ International Advance Publication
Effect of Al Content on Precipitation Behavior of AIN Inclusions during Unidirectional Solidification Process of Fe-(0.5-2.0)%Al-2.0%Mn Alloys

Tetsu-to-Hagané Advance Publication
Quantitative Understanding of Solute Concentration Distribution by Microsegregation During Solidification

Tetsu-to-Hagané Advance Publication
SOKD: A soft optimization knowledge distillation scheme for surface defects identification of hot-rolled strip

ISIJ International Advance Publication
Reduction and Carburization Behaviors of Iron Oxide Composite with Iron Carbide and Free Carbon

ISIJ International Advance Publication

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

Keyword Ranking

reduction caco3 in electric furnace

kinetics of decarburization of liquid iron with high concentration ofcarbon

kinetics of decarburization of liquid iron by ar-coz gasmixture

ahss

charpy impact chemistry

dual phase steel

foamy slag in eaf

kinetics of decarburization of liquid iron by

ladle furnace flicker

scm440

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

In-situ Observation of Precipitation and Growth of MnS Inclusions during Solidification of a High Sulfur Steel

Measurement of Bubble Size Distribution and Generation Position of Bubbles Generated during Smelting Reduction of Iron Oxide-containing Slag

Injection of hydrogenous gases into the blast furnace tuyeres for reducing CO₂ emissions: a review

Development of a Low-carbon Sintering Process Technology and Its Application to a Pilot-scale Sintering Testing

Precipitation Behavior of MnS from Molten Iron to Al₂O₃ during Solidification

Molecular dynamics simulation of viscosity of the CaO, MgO and Al₂O₃ melts

Effect of Al Content on Precipitation Behavior of AIN Inclusions during Unidirectional Solidification Process of Fe-(0.5-2.0)%Al-2.0%Mn Alloys

Quantitative Understanding of Solute Concentration Distribution by Microsegregation During Solidification

SOKD: A soft optimization knowledge distillation scheme for surface defects identification of hot-rolled strip

Reduction and Carburization Behaviors of Iron Oxide Composite with Iron Carbide and Free Carbon

Advanced Search

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

Keyword Ranking

reduction caco3 in electric furnace

kinetics of decarburization of liquid iron with high concentration ofcarbon

kinetics of decarburization of liquid iron by ar-coz gasmixture

ahss

charpy impact chemistry

dual phase steel

foamy slag in eaf

kinetics of decarburization of liquid iron by

ladle furnace flicker

scm440

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

In-situ Observation of Precipitation and Growth of MnS Inclusions during Solidification of a High Sulfur Steel

Measurement of Bubble Size Distribution and Generation Position of Bubbles Generated during Smelting Reduction of Iron Oxide-containing Slag

Injection of hydrogenous gases into the blast furnace tuyeres for reducing CO2 emissions: a review

Development of a Low-carbon Sintering Process Technology and Its Application to a Pilot-scale Sintering Testing

Precipitation Behavior of MnS from Molten Iron to Al2O3 during Solidification

Molecular dynamics simulation of viscosity of the CaO, MgO and Al2O3 melts

Effect of Al Content on Precipitation Behavior of AIN Inclusions during Unidirectional Solidification Process of Fe-(0.5-2.0)%Al-2.0%Mn Alloys

Quantitative Understanding of Solute Concentration Distribution by Microsegregation During Solidification

SOKD: A soft optimization knowledge distillation scheme for surface defects identification of hot-rolled strip

Reduction and Carburization Behaviors of Iron Oxide Composite with Iron Carbide and Free Carbon

Advanced Search

Injection of hydrogenous gases into the blast furnace tuyeres for reducing CO₂ emissions: a review

Precipitation Behavior of MnS from Molten Iron to Al₂O₃ during Solidification

Molecular dynamics simulation of viscosity of the CaO, MgO and Al₂O₃ melts