Untersuchung des SwRK‐Verhaltens des hochreinen martensitaushärtenden Stahles X5CrNiCuNb 17 4 PH im Vergleich zum weichmartensitischen Stahl X4CrNiMo 16 5 1 ESU in chloridhaltigen wäßrigen Medien. Teil 2: SwRK‐Untersuchungen und Rißeinleitungsmechanismen

Schmitt‐Thomas, Kh. G.; Happle, Th.; Wunderlich, R.

doi:10.1002/maco.19890400704

Cited by 8 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the contrary, it increases with the increasing chromium content in ferritic, austenitic, and duplex steels [63], as well as the internal compressive stress in surface regions [49,64]. The martensitic microstructure shows a brittle fracture under the cyclic load [65], but improves the corrosion fatigue [66], while precipitations of copper or oxide inclusions will cause early failure already at a small number of cycles [36,67].…”

mentioning

confidence: 99%

Corrosion and Corrosion Fatigue of Steels in Downhole CCS Environment—A Summary

2021

View full text Add to dashboard Cite

Static immersion tests of potential injection pipe steels 42CrMo4, X20Cr13, X46Cr13, X35CrMo4, and X5CrNiCuNb16-4 at T = 60 °C and ambient pressure, as well as p = 100 bar were performed for 700–8000 h in a CO2-saturated synthetic aquifer environment similar to CCS sites in the Northern German Basin (NGB). Corrosion rates at 100 bar are generally lower than at ambient pressure. The main corrosion products are FeCO3 and FeOOH with surface and local corrosion phenomena directly related to the alloy composition and microstructure. The appropriate heat treatment enhances corrosion resistance. The lifetime reduction of X46Cr13, X5CrNiCuNb16-4, and duplex stainless steel X2CrNiMoN22-5-3 in a CCS environment is demonstrated in the in situ corrosion fatigue CF experiments (axial push-pull and rotation bending load, 60 °C, brine: Stuttgart Aquifer and NGB, flowing CO2: 30 L/h, +/− applied potential). Insulating the test setup is necessary to gain reliable data. S-N plots, micrographic-, phase-, fractographic-, and surface analysis prove that the life expectancy of X2CrNiMoN22-5-3 in the axial cyclic load to failure is clearly related to the surface finish, applied stress amplitude, and stress mode. The horizontal grain attack within corrosion pit cavities, multiple fatigue cracks, and preferable deterioration of austenitic phase mainly cause fatigue failure. The CF life range increases significantly when a protective potential is applied.

show abstract

mentioning

confidence: 99%

Corrosion and Corrosion Fatigue of Steels in Downhole CCS Environment—A Summary

2021

View full text Add to dashboard Cite

show abstract

Corrosion Fatigue Of X46Cr13 in CCS Environment

Pfennig¹,

Wolf²,

Böllinghaus³

2016

Energy Technology 2016: Carbon Dioxide Management and Other Technologies

View full text Add to dashboard Cite

Rost‐ und säurebeständige Stähle unter Komplexbeanspruchung

Ellermeier

Gugau

Scholz

et al. 2006

Materialwissenschaft Werkst

View full text Add to dashboard Cite

With corrosion fatigue investigations under different loadings (R = 0,27, -1 and 10) and with inner pressure tests a duplex steel (1.4462) and a super austenitic steel (1.3974) are compared. The investigations were carried out in 10 % HNO 3 , artificial seawater according to DIN 50905 and in two very important liquids for application (artificial seawater according to DIN 50905 with H 2 S aerated and water with chloride, fluoride, bromide, iodide). For comparison the same tests under only mechanical loads were done in acid free oil. The results show that the super austenitic steel has an significantly higher resistance against corrosion fatigue as the duplex steel under one-and three dimensional loads up to 10 7 cycles. The proportion between the results in the corrosive liquids and the oil can be described by a factor. In artificial seawater factors between 0,67 and 0,92 and in 10 % HNO 3 between 0,67 and 0,83 were determined depending from the loading for the duplex steel. With the super austenitic steel factors between 0,86 and 1 in artificial seawater and between 0,7 and 1,0 in 10 % HNO 3 were received.

show abstract

Untersuchung des SwRK‐Verhaltens des hochreinen martensitaushärtenden Stahles X5CrNiCuNb 17 4 PH im Vergleich zum weichmartensitischen Stahl X4CrNiMo 16 5 1 ESU in chloridhaltigen wäßrigen Medien. Teil 2: SwRK‐Untersuchungen und Rißeinleitungsmechanismen

Cited by 8 publications

References 3 publications

Corrosion and Corrosion Fatigue of Steels in Downhole CCS Environment—A Summary

Corrosion and Corrosion Fatigue of Steels in Downhole CCS Environment—A Summary

Corrosion Fatigue Of X46Cr13 in CCS Environment

Rost‐ und säurebeständige Stähle unter Komplexbeanspruchung

Contact Info

Product

Resources

About