This report discusses the basis for material selection in chemical plants, especially focusing on the design of an actual plant based on laboratory corrosion test results. Both the chemical system created when chlorine gas and bromine gas were neutralized with alkaline solution, and material economi
Field and laboratory experiences of Sulfide stress corrosion of a duplex stainless steel
โ Scribed by Bruno Bazzoni; Alberto Cigada; Luciano Lazzari; Pietro Pedeferri
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- German
- Weight
- 745 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0947-5117
No coin nor oath required. For personal study only.
โฆ Synopsis
Targets of this work have been: testing of duplex stainless steel in field (into a geothermal well) and in laboratory NACE environment in presence of crevices and sharp defects; development of testing based on fracture mechanics and comparison with traditional testing approach.
The following types of specimens have been used: smooth specimens for tensile tests at constant load with artificial crevices, U-bend specimens and li2" WOL-modified fracture mechanics specimens.
The results are only in partial accordance with available literature data and suggest to be very careful in extending laboratory results to real conditions, where, for instance, crevices and sharp defects always exist.
Im Rahmen der vorliegenden Arbeit sollte das SpannungsriBkorrosionsverhalten von nichtrostenden Duplex-Stahlen unter Betriebsbedingungen (geothermale Quelle) und im Laboratorium (NACE-Priifmedium) unter Beriicksichtigung der Wirkung von Spalten und scharfkantigen Fehlerstellen untersucht werden. Dabei sollte das RiBverhalten bruchmechanisch ermittelt und mit den herkommlichen Prufmethoden verglichen werden.
Fur die Versuche wurden glatte Zugproben (bei konstanter Belastung und mit kunstlichen Spalten), U-Proben und modifizierte bruchmechanische 112" WOGProben verwendet.
Die Ergebnisse stirnmen nur teilweise mit den verfugbaren Literaturdaten iiberein und zeigen, daR man bei der Ubertragung von Laboratoriumsergebnissen auf die Praxis sehr vorsichtig sein md3, vor allem deshalb, weil dort immer Spalten und scharfkantige Fehlerstellen vorhanden sind.
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