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Zairyo-to-Kankyo
Vol. 73 (2024), No. 11

Zairyo-to-Kankyo Vol. 73 (2024), No. 11

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

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Vol. 73 (2024)
1. No.11
2. No.10
3. No.9
4. No.8
5. No.7
6. No.6
7. No.5
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Vol. 72 (2023)
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Vol. 68 (2019)
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Zairyo-to-Kankyo Vol. 73 (2024), No. 11

Future Prospects for Corrosion Science

Eiji Akiyama

pp. 247-248

DOI:

10.3323/jcorr.73.247

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Article Title

Future Prospects for Corrosion Science

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Ris

Localized Corrosion due to the Reverse of Electrical Potential between the Zinc and the Steel of Galvanized Steel Pipes

Toshihiro Yamate

pp. 250-262

DOI:

10.3323/jcorr.73.250

Abstract

The standard electrode potential of zinc is 323 mV lessnoble compared with iron （steel）. However, zinc shows high corrosion resistance with the oxide film formed on the surface in pH neutral-weak alkali area compared with iron. Therefore, galvanized steel is used all over the world. However, the potential of zinc might rise while using it, and the potential reversal of zinc and steel be caused. In that case, the corrosion of steel is accelerated because there is an effect with cathode/anode area ratio in the zinc plating layer defect part by the localized corrosion etc., too. As a result, it might cause the water leak accident. Actually, the localized corrosion that originated in the potential reversal of steel/zinc frequently occurred in the cold and hot water piping and the sprinkler piping system. The potential reversal of steel/zinc was verified by the sample measurement. In this report, it introduces the corrosion case with building piping systems by the potential reversal of steel/zinc. Moreover, the mechanism and measures are described.

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Zairyo-to-Kankyo Vol. 73 (2024), No. 11

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. 73 (2024), No. 11

Future Prospects for Corrosion Science

Share it with SNS

Localized Corrosion due to the Reverse of Electrical Potential between the Zinc and the Steel of Galvanized Steel Pipes

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. 73 (2024), No. 11

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. 73 (2024), No. 11

Future Prospects for Corrosion Science

Share it with SNS

Localized Corrosion due to the Reverse of Electrical Potential between the Zinc and the Steel of Galvanized Steel Pipes

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

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Terminal Settling Velocity of Particle in Suspension

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Precipitation Behavior of MnS from Molten Iron to Al₂O₃ during Solidification

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