1. bookVolumen 66 (2022): Heft 1 (January 2022)
Zeitschriftendaten
License
Format
Zeitschrift
eISSN
1804-1213
Erstveröffentlichung
03 Apr 2012
Erscheinungsweise
4 Hefte pro Jahr
Sprachen
Englisch
access type Uneingeschränkter Zugang

Dissimilar weld joint corrosion in simulated boiler water environment

Online veröffentlicht: 18 Apr 2022
Volumen & Heft: Volumen 66 (2022) - Heft 1 (January 2022)
Seitenbereich: 16 - 19
Zeitschriftendaten
License
Format
Zeitschrift
eISSN
1804-1213
Erstveröffentlichung
03 Apr 2012
Erscheinungsweise
4 Hefte pro Jahr
Sprachen
Englisch
Abstract

This paper is focused on the problematics of weld joint corrosive degradation in the boiler water environment. The boiler water is commonly used in power industry. The corrosion experiment simulated the boiler water environment during shutdown, when chemicals may be concentrated in the deposits, or as a result of evaporation. The corrosion experiment was performed on heterogeneous weldments made of P265GH//X6CrNiTi18-9 steels in the environment of stagnant boiler water with the addition of NaCl for 53 days. The data showed only minimal weight losses, and small changes in the measured fracture toughness of the welded joint. At the same time, a tendency for a mechanical weakening of the welded joint with the increasing aggressivity of the boiler water environment was observed. The metallographic analysis was performed to describe the nature of corrosive degradation.

1. Faes W. et al. Corrosion and corrosion prevention in heat exchangers, Corrosion Reviews 2019, 37 (2), 131-155. https://doi.org/10.1515/corrrev-2018-005410.1515/corrrev-2018-0054 Search in Google Scholar

2. ASM International, Corrosion: Understanding the Basics. https://www.asminternational.org/documents/10192/1849770/06691g_chapter_1.pdf (accessed Aug 15, 2020). Search in Google Scholar

3. Arlt N. et al. Korozivzdorné oceli ve styku s jinými kovovými materiály. Euro Inox, http://www.worldstainless.org/Files/issf/non-image-files/PDF/Euro_Inox/Contact_with_Other_CZ.pdf (accessed Jul 1, 2021) Search in Google Scholar

4. Belkessa B. et al. Microstructure and Mechanical Behavior in Dissimilar SAF 2205/API X52 Welded Pipes. http://www.amse.org.cn/article/2016/1006-7191/1006-7191-29-7-674.html (accessed Apr 6, 2021).10.1007/s40195-016-0428-8 Search in Google Scholar

5. Davis J. R. et al. Corrosion of Weldments, 1st ed.; ASM International – American Technical Publishers Ltd.: USA -Ohio, 2006, ISBN-13: 978-0-87170-841-0. Search in Google Scholar

6. Sigmund J. Speciální případy korozního namáhání – chloridy. Strojírenství 2018, 12 (4), 64–65. Search in Google Scholar

7. ISO 8407 Corrosion of metals and alloys – Removal of corrosion products from corrosion test specimens. Search in Google Scholar

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