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Zairyo-to-Kankyo
Vol. 68 (2019), No. 4

Zairyo-to-Kankyo Vol. 68 (2019), No. 4

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

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Keyword Ranking

04 Apr. (Last 30 Days)

Zairyo-to-Kankyo Vol. 68 (2019), No. 4

Inaugural Message from New President

Atsushi Nishikata

pp. 73-74

DOI:

10.3323/jcorr.68.73

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Article Title

Inaugural Message from New President

Bibtex

Ris

Estimation of Hydrogen Embrittlement Process by Statistical Analysis of Fracture Time

Takuya Kamisho, Ryuta Ishii, Yosuke Takeuchi, Masamitsu Watanabe, Masayuki Tsuda

pp. 88-91

DOI:

10.3323/jcorr.68.88

Abstract

It may be possible to estimate the hydrogen embrittlement process by statistically analyzing the fracture time of high strength steel. In this study, we derived transition probability λ（t） representing the degradation rate by statistically analyzing the fracture time of high strength steel using a stochastic process model. The analysis revealed that λ（t） decreased rapidly after the start of the test and then became a constant value. This behavior differs from general hydrogen entry behavior, suggesting that the fracture time of high strength steel is not uniquely determined only by the amount of hydrogen in the specimen.

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Article Title

Estimation of Hydrogen Embrittlement Process by Statistical Analysis of Fracture Time

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Evaluation of Corrosion Resistance for Electrodeposition Coating Steel with a High Voltage Supplied Method

Teruaki Asada, Tsutomu Shigenaga, Yoshinori Isomoto

pp. 92-97

DOI:

10.3323/jcorr.68.92

Abstract

A new time accelerated testing method of corrosion resistance for electrodeposition coating steel was proposed in this study. This method is to measure a cut off voltage on environmental corrosion factors obtained by linearly increasing voltage of 1 V･s^－1 within a few minute working time, in order to shorten an evaluation span of coating steels. The cut off voltage was measured for the cation electrodeposition coating steels of different coating thickness and different baking conditions after the coating process. As a result, the cut off voltage increased with the increase in thickness and crosslink density of the coating layer. The cut off voltage was well related to the blister initiation cycle number obtained by a cyclic corrosion test. The effectiveness of this method was then recognized. And ion permeability tests and FTIR analyses intimated penetration of ions and adsorption processes into the electrodeposition coating layer.

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Evaluation of Corrosion Resistance for Electrodeposition Coating Steel with a High Voltage Supplied Method

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Effect of Film Forming Amine on Flow Accelerated Corrosion of Carbon Steel in Boiler Feed Water of Power Plants

Shota Yamazaki, Masaki Yoshida, Yusuke Suetake, Kazuo Marugame, Li-Bin Niu

pp. 98-104

DOI:

10.3323/jcorr.68.98

Abstract

Flow accelerated corrosion（FAC） tests on carbon steel in boiler feed water of power plants were carried out. The FAC of carbon steel was remarkably inhibited by adding film forming amines of Dodecylamine （DDA） and Octadecylamine （ODA） into the boiler water. Furthermore, the FAC inhibition mechanism of the film forming amines was investigated by polarization tests and zeta potential measurements. It was suggested that the film forming amines adsorbed on the steel surface and on the oxide film formed, inhibiting the corrosion reactions on the steel and protecting the oxide film, thereby the FAC was inhibited.

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Article Title

Effect of Film Forming Amine on Flow Accelerated Corrosion of Carbon Steel in Boiler Feed Water of Power Plants

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Article Access Ranking

04 Apr. (Last 30 Days)

Wettability of CaS Against Molten Iron at 1873 K

ISIJ International Vol.65(2025), No.2
Perspectives on the Promising Pathways to Zero Carbon Emissions in the Steel Industry toward 2050

ISIJ International Vol.65(2025), No.2
Analysis of Peritectic Solidification of Ag–Sn Alloys by Unidirectional Solidification Experiment

Tetsu-to-Hagané Advance Publication
Thermodynamic Calculation of Grain Boundary Composition in Ferritic Steels and Its Application for Controlling the Hall–Petch Coefficient

ISIJ International Advance Publication
Effects of interface anisotropy on the solidification morphology of zinc alloys and development of data assimilation for their estimation

ISIJ International Advance Publication
Hydrogen-induced vacancy formation process in austenitic stainless steel 304

ISIJ International Advance Publication
Microstructural Analysis of Reduced Multicomponent Calcium Ferrite Using STEM-EDS and 3DAP

Tetsu-to-Hagané Advance Publication
PREFACE

MATERIALS TRANSACTIONS Vol.54(2013), No.6
Bend Failure Mechanism of Zinc Coated Advanced High Strength Steel

ISIJ International Vol.58(2018), No.8
Chemical State Evolution of Iron Ore Sinter Investigated by Wide-Area Imaging XAFS

ISIJ International Advance Publication

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Zairyo-to-Kankyo Vol. 68 (2019), No. 4

Keyword Ranking

blast furnace

ferrocoke

high-strength steel alloys

isij international

slag/metal reactions in steelmaking

tramp elements

trip steel martensitic transformation

bend

continuous casting slab

crystallization

Zairyo-to-Kankyo Vol. 68 (2019), No. 4

Inaugural Message from New President

Share it with SNS

Estimation of Hydrogen Embrittlement Process by Statistical Analysis of Fracture Time

Share it with SNS

Evaluation of Corrosion Resistance for Electrodeposition Coating Steel with a High Voltage Supplied Method

Share it with SNS

Effect of Film Forming Amine on Flow Accelerated Corrosion of Carbon Steel in Boiler Feed Water of Power Plants

Share it with SNS

Article Access Ranking

Wettability of CaS Against Molten Iron at 1873 K

Perspectives on the Promising Pathways to Zero Carbon Emissions in the Steel Industry toward 2050

Analysis of Peritectic Solidification of Ag–Sn Alloys by Unidirectional Solidification Experiment

Thermodynamic Calculation of Grain Boundary Composition in Ferritic Steels and Its Application for Controlling the Hall–Petch Coefficient

Effects of interface anisotropy on the solidification morphology of zinc alloys and development of data assimilation for their estimation

Hydrogen-induced vacancy formation process in austenitic stainless steel 304

Microstructural Analysis of Reduced Multicomponent Calcium Ferrite Using STEM-EDS and 3DAP

PREFACE

Bend Failure Mechanism of Zinc Coated Advanced High Strength Steel

Chemical State Evolution of Iron Ore Sinter Investigated by Wide-Area Imaging XAFS

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