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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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19 Sep. (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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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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19 Sep. (Last 30 Days)

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PREFACE

MATERIALS TRANSACTIONS Vol.65(2024), No.9
Effect of Binder Adsorption Characteristics of Coal on Cold Strength for Ferro-coke Briquette

Tetsu-to-Hagané Advance Publication

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

Keyword Ranking

impact delta ferrite

fracture toughness grain size

reduction caco3 in electric furnace

impact toughness delta ferrite

ladle furnace sulfur

oxide vapour high temperature

real-time observation of stress-strain behavior beyond necking in martensitic steel by in-situ synchrotron x-ray diffraction

retained austenite 17-4ph martensitic

474-483

acid rain

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

Current Trends on Deep Learning Techniques Applied in Iron and Steel Making Field: A Review

Effect of Wettability on Droplet Agglomeration in Two Immiscible Liquids

Arc-plasma-assisted laser-induced breakdown spectroscopy (AP-LIBS): A Study on Signal Enhancement and Spatiotemporal Distribution

Coating Weight Reduction Technology in Gas Wiping of Hot-Dip Galvanizing on Steel Strip

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

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

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

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

PREFACE

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

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