Evaluation of Corrosion Resistance of Nickel-based Alloy EP718 for use in Hydrogen Sulphide Containing Environment
| Autor: | Mark Kovalev, Ekaterina Alekseeva, Andrey Lapechenkov, Lyudmila Galata |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
lcsh:GE1-350
Materials science 020209 energy Alloy Metallurgy technology industry and agriculture chemistry.chemical_element 02 engineering and technology Nickel based engineering.material Hydrogen sulphide equipment and supplies 021001 nanoscience & nanotechnology Corrosion Nickel chemistry 0202 electrical engineering electronic engineering information engineering engineering Stress corrosion cracking 0210 nano-technology lcsh:Environmental sciences |
| Zdroj: | E3S Web of Conferences, Vol 225, p 03001 (2021) |
| ISSN: | 2267-1242 |
| Popis: | Nickel-based alloys cover a wide range of oil and gas applications. Alloy EP718 is used as an analogue of alloy 718. The corrosion resistance of EP718 has been determined in severe environmental conditions of NACE level VI over 3 months (175°С, PCO2 = 3.5 MPa, PH2S = 3.5 MPa, pH 3.5, 20% NaCl). The effects of heat treatment on the corrosion rate were studied. The results indicate that the corrosion rate of EP718 in a simulated environment is less than 0.01 mm per year. Stress corrosion cracking could be observed in low quality production and incorrect heat treatment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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