Corrosion and Protection of 0Cr18Ni9 Stainless Steel Cooling Water Pipe in Power Plant

Ai Jun Yan; Wei Juan Hu; Ying Cao; Mo Cao; Zhi Qiang Yang; La Jun Feng

doi:10.4028/www.scientific.net/MSF.809-810.395

Paper Titles

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Studying on High Temperature Thermoplastic of High Carbon Steel
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Research on Intergranular Corrosion Behavior of Welded Joints of Nuclear Grade Stainless Steel
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Corrosion and Protection of 0Cr18Ni9 Stainless Steel Cooling Water Pipe in Power Plant
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Acoustic Emission Response of 316LN Welded Joint during Intergranular Corrosion
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BPW91 Method Used in Analyzing Electronic Structures and Magnetic Properties of Ni_n (2-13) Clusters
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Study on the Development of Pretreatment Processes of Electroless Nickel Plating on Al Alloy Surface
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First-Principle Studies of a High Entropy Solid Solution of AlCoCrCuFeNi_x with Different Mole Fractions of Ni
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HomeMaterials Science ForumMaterials Science Forum Vols. 809-810Corrosion and Protection of 0Cr18Ni9 Stainless...

Corrosion and Protection of 0Cr18Ni9 Stainless Steel Cooling Water Pipe in Power Plant

Abstract:

This paper analyzed the morphology and reasons of pitting corrosion perforation of 0Cr18Ni9 stainless steel cooling water pipes in a power plant and pointed out the measures to prevent the pitting corrosion under this condition. The results showed that: the reason of pitting corrosion of 0Cr18Ni9 stainless steel cooling water pipes was the existence of multiple Cl^-and easily fouling Ca²⁺ and Mg²⁺ in water, with the corrosion products mainly the oxides of Fe and Cr; the economic measures to prevent pitting corrosion were to increase the pH of water and decrease the content of Ca²⁺ and Mg²⁺.

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2014 China Functional Materials Technology and Industry Forum

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Periodical:

Materials Science Forum (Volumes 809-810)

Pages:

395-400

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.809-810.395

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Online since:

December 2014

Authors:

Ai Jun Yan, Wei Juan Hu, Ying Cao, Mo Cao, Zhi Qiang Yang, La Jun Feng*

Keywords:

AC Impedance, Cooling Water, Electrochemistry, pH, Pitting Corrosion, Polarization Curves

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References

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