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Zairyo-to-Kankyo
Vol. 68 (2019), No. 12

Zairyo-to-Kankyo Vol. 68 (2019), No. 12

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

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Keyword Ranking

16 Jan. (Last 30 Days)

Zairyo-to-Kankyo Vol. 68 (2019), No. 12

Difficulty in Troubleshooting

Kazuharu Sobue

pp. 331-332

DOI:

10.3323/jcorr.68.331

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Article Title

Difficulty in Troubleshooting

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Ris

Evaluation of Relationship between Corrosion Thickness Reduction and Propagation Mode of AE Wave

Takuya Kurihara, Takuma Kagami, Matsuo Takuma, Taro Kono, Naoto Nakasato

pp. 342-346

DOI:

10.3323/jcorr.68.342

Abstract

Corrosion loss evaluation method for steel structure was investigated by acoustic emission （AE） signals with characteristics of Lamb wave. Relationship between wavelet coefficient of S₀ mode of Lamb wave AE signals and AE source depth were evaluated. The amplitude of the S₀ mode becomes higher as the AE source become closer to the thickness center. Thus, the corrosion depth can be evaluated by the strength ratio of S₀ mode and A₀ mode of Lamb wave AE signals.

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Article Title

Evaluation of Relationship between Corrosion Thickness Reduction and Propagation Mode of AE Wave

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Observation of Pit Initiation and Growth of Stainless Steel under a Chloride Solution Droplet―Effect of S Content on Pit Initiation, Growth and Repassivation―

Azusa Ooi, Yaoki Ise, Eiji Tada, Atsushi Nishikata

pp. 347-354

DOI:

10.3323/jcorr.68.347

Abstract

A system that can stop pit growth automatically at any time after the pit initiation under a chloride solution droplet was developed. Using this system, atmospheric pitting corrosion of austenitic stainless steels with various sulfur （S） concentrations was investigated. It was confirmed that initiation site of pitting corrosion was manganese sulfide （MnS） inclusions under the droplets regardless of S concentrations. In addition, the growth behavior of the active dissolution area doesn't also depend on S concentrations. When these specimens were subjected to wet-dry cycle tests, probability of pitting corrosion increases with S concentrations due to increasing initiation site, and there is no clear difference in chloride concentrations for onset of the pitting corrosion. On the other hand, repassivation behavior is strongly depends on S concentrations.

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Article Title

Observation of Pit Initiation and Growth of Stainless Steel under a Chloride Solution Droplet―Effect of S Content on Pit Initiation, Growth and Repassivation―

Bibtex

Ris

Article Access Ranking

16 Jan. (Last 30 Days)

Wettability of CaS against molten iron at 1873 K

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Coating Structure and Corrosion Mechanism of Zn-19%Al-6%Mg Alloy Coating Layer

ISIJ International Advance Publication
Preface to the Special Issue on “New Developments in High Temperature Processing of Steels and Related Materials Leading the Sustainable Society, and Key Properties of High Temperature Melts”

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In-situ Observation of Inclusion Formation Behaviors during Solidification Process Using Model Alloy

Tetsu-to-Hagané Advance Publication
Precipitation Behavior of MnS from Molten Iron to Al₂O₃ during Solidification

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Evaluation method for the three-dimensional behavior of bubbles in a liquid metal under horizontal magnetic field using ultrasonic tomography

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Effect of Cooling Rate on Microstructure, Phases, and Properties of Al-Si Coated Hot-Press-Forming Steel Sheets

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Integrated Experimental Phase Equilibria and Thermodynamic Modelling Investigation of the FeO–Fe₂O₃–MgO and the FeO–Fe₂O₃–MgO–SiO₂ Systems. Part I: Experimental Results in Air

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ISIJ International Vol.64(2024), No.15
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ISIJ International Vol.64(2024), No.15

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Zairyo-to-Kankyo Vol. 68 (2019), No. 12

Keyword Ranking

6.5 silicon steel

daisuke kasai

deguchi

effect of the substrate properties on the surface quality of galvannealed steel sheets

hydrogen reduction of iron ore

scm435 annealing

spring steel

wettability of cas against molten iron at 1873 k

せん断変形

レール

Zairyo-to-Kankyo Vol. 68 (2019), No. 12

Difficulty in Troubleshooting

Share it with SNS

Evaluation of Relationship between Corrosion Thickness Reduction and Propagation Mode of AE Wave

Share it with SNS

Observation of Pit Initiation and Growth of Stainless Steel under a Chloride Solution Droplet―Effect of S Content on Pit Initiation, Growth and Repassivation―

Share it with SNS

Article Access Ranking

Wettability of CaS against molten iron at 1873 K

Coating Structure and Corrosion Mechanism of Zn-19%Al-6%Mg Alloy Coating Layer

Preface to the Special Issue on “New Developments in High Temperature Processing of Steels and Related Materials Leading the Sustainable Society, and Key Properties of High Temperature Melts”

In-situ Observation of Inclusion Formation Behaviors during Solidification Process Using Model Alloy

Precipitation Behavior of MnS from Molten Iron to Al₂O₃ during Solidification

Evaluation method for the three-dimensional behavior of bubbles in a liquid metal under horizontal magnetic field using ultrasonic tomography

Effect of Cooling Rate on Microstructure, Phases, and Properties of Al-Si Coated Hot-Press-Forming Steel Sheets

Integrated Experimental Phase Equilibria and Thermodynamic Modelling Investigation of the FeO–Fe₂O₃–MgO and the FeO–Fe₂O₃–MgO–SiO₂ Systems. Part I: Experimental Results in Air

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

Terminal Settling Velocity of Particle in Suspension

Advanced Search

Zairyo-to-Kankyo Vol. 68 (2019), No. 12

Keyword Ranking

6.5 silicon steel

daisuke kasai

deguchi

effect of the substrate properties on the surface quality of galvannealed steel sheets

hydrogen reduction of iron ore

scm435 annealing

spring steel

wettability of cas against molten iron at 1873 k

せん断変形

レール

Zairyo-to-Kankyo Vol. 68 (2019), No. 12

Difficulty in Troubleshooting

Share it with SNS

Evaluation of Relationship between Corrosion Thickness Reduction and Propagation Mode of AE Wave

Share it with SNS

Observation of Pit Initiation and Growth of Stainless Steel under a Chloride Solution Droplet―Effect of S Content on Pit Initiation, Growth and Repassivation―

Share it with SNS

Article Access Ranking

Wettability of CaS against molten iron at 1873 K

Coating Structure and Corrosion Mechanism of Zn-19%Al-6%Mg Alloy Coating Layer

Preface to the Special Issue on “New Developments in High Temperature Processing of Steels and Related Materials Leading the Sustainable Society, and Key Properties of High Temperature Melts”

In-situ Observation of Inclusion Formation Behaviors during Solidification Process Using Model Alloy

Precipitation Behavior of MnS from Molten Iron to Al2O3 during Solidification

Evaluation method for the three-dimensional behavior of bubbles in a liquid metal under horizontal magnetic field using ultrasonic tomography

Effect of Cooling Rate on Microstructure, Phases, and Properties of Al-Si Coated Hot-Press-Forming Steel Sheets

Integrated Experimental Phase Equilibria and Thermodynamic Modelling Investigation of the FeO–Fe2O3–MgO and the FeO–Fe2O3–MgO–SiO2 Systems. Part I: Experimental Results in Air

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

Terminal Settling Velocity of Particle in Suspension

Advanced Search

Precipitation Behavior of MnS from Molten Iron to Al₂O₃ during Solidification

Integrated Experimental Phase Equilibria and Thermodynamic Modelling Investigation of the FeO–Fe₂O₃–MgO and the FeO–Fe₂O₃–MgO–SiO₂ Systems. Part I: Experimental Results in Air