Stress-Corrosion Cracking Behaviour of Lean-Duplex Stainless Steels in Chloride/Thiosulphate Environments
The stress-corrosion cracking (SCC) behaviour of two lean-duplex stainless steels (DSS 2304 and LDSS 2404) was studied by slow strain-rate tests (SSRT) in 20% NaCl solution at 80 °C (pH about 6) and in NACE TM-0177 solution at 25 °C (pH 2.7), both in the absence and in the presence o...
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MDPI AG
2018-04-01
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| Series: | Metals |
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| Online Access: | http://www.mdpi.com/2075-4701/8/4/237 |
| _version_ | 1828322009184993280 |
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| author | Federica Zanotto Vincenzo Grassi Andrea Balbo Cecilia Monticelli Fabrizio Zucchi |
| author_facet | Federica Zanotto Vincenzo Grassi Andrea Balbo Cecilia Monticelli Fabrizio Zucchi |
| author_sort | Federica Zanotto |
| collection | DOAJ |
| description | The stress-corrosion cracking (SCC) behaviour of two lean-duplex stainless steels (DSS 2304 and LDSS 2404) was studied by slow strain-rate tests (SSRT) in 20% NaCl solution at 80 °C (pH about 6) and in NACE TM-0177 solution at 25 °C (pH 2.7), both in the absence and in the presence of thiosulphate ions (S2O32−). The SCC susceptibility of the two alloys was compared to that of LDSS 2101 investigated in a previous study. LDSS 2404 was always immune to SCC, while DSS 2304 (and LDSS 2101) suffered this corrosion form at specific concentrations. The high SCC resistance of DSS 2404 in both environments was connected to its high Mo content, while the significant SCC susceptibility of LDSS 2101 in NACE TM-0177 solution was likely due to the high Mn content of the alloy. |
| first_indexed | 2024-04-13T18:34:39Z |
| format | Article |
| id | doaj.art-e6a8fc05c431425c83e69ab88110acca |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-04-13T18:34:39Z |
| publishDate | 2018-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-e6a8fc05c431425c83e69ab88110acca2022-12-22T02:34:56ZengMDPI AGMetals2075-47012018-04-018423710.3390/met8040237met8040237Stress-Corrosion Cracking Behaviour of Lean-Duplex Stainless Steels in Chloride/Thiosulphate EnvironmentsFederica Zanotto0Vincenzo Grassi1Andrea Balbo2Cecilia Monticelli3Fabrizio Zucchi4“Aldo Daccò” Corrosion and Metallurgy Study Centre, University of Ferrara, Via G. Saragat 4A, 44122 Ferrara, Italy“Aldo Daccò” Corrosion and Metallurgy Study Centre, University of Ferrara, Via G. Saragat 4A, 44122 Ferrara, Italy“Aldo Daccò” Corrosion and Metallurgy Study Centre, University of Ferrara, Via G. Saragat 4A, 44122 Ferrara, Italy“Aldo Daccò” Corrosion and Metallurgy Study Centre, University of Ferrara, Via G. Saragat 4A, 44122 Ferrara, Italy“Aldo Daccò” Corrosion and Metallurgy Study Centre, University of Ferrara, Via G. Saragat 4A, 44122 Ferrara, ItalyThe stress-corrosion cracking (SCC) behaviour of two lean-duplex stainless steels (DSS 2304 and LDSS 2404) was studied by slow strain-rate tests (SSRT) in 20% NaCl solution at 80 °C (pH about 6) and in NACE TM-0177 solution at 25 °C (pH 2.7), both in the absence and in the presence of thiosulphate ions (S2O32−). The SCC susceptibility of the two alloys was compared to that of LDSS 2101 investigated in a previous study. LDSS 2404 was always immune to SCC, while DSS 2304 (and LDSS 2101) suffered this corrosion form at specific concentrations. The high SCC resistance of DSS 2404 in both environments was connected to its high Mo content, while the significant SCC susceptibility of LDSS 2101 in NACE TM-0177 solution was likely due to the high Mn content of the alloy.http://www.mdpi.com/2075-4701/8/4/237lean-duplex stainless steelslow strain-rate testingstainless steelstress corrosionsulphide cracking |
| spellingShingle | Federica Zanotto Vincenzo Grassi Andrea Balbo Cecilia Monticelli Fabrizio Zucchi Stress-Corrosion Cracking Behaviour of Lean-Duplex Stainless Steels in Chloride/Thiosulphate Environments Metals lean-duplex stainless steel slow strain-rate testing stainless steel stress corrosion sulphide cracking |
| title | Stress-Corrosion Cracking Behaviour of Lean-Duplex Stainless Steels in Chloride/Thiosulphate Environments |
| title_full | Stress-Corrosion Cracking Behaviour of Lean-Duplex Stainless Steels in Chloride/Thiosulphate Environments |
| title_fullStr | Stress-Corrosion Cracking Behaviour of Lean-Duplex Stainless Steels in Chloride/Thiosulphate Environments |
| title_full_unstemmed | Stress-Corrosion Cracking Behaviour of Lean-Duplex Stainless Steels in Chloride/Thiosulphate Environments |
| title_short | Stress-Corrosion Cracking Behaviour of Lean-Duplex Stainless Steels in Chloride/Thiosulphate Environments |
| title_sort | stress corrosion cracking behaviour of lean duplex stainless steels in chloride thiosulphate environments |
| topic | lean-duplex stainless steel slow strain-rate testing stainless steel stress corrosion sulphide cracking |
| url | http://www.mdpi.com/2075-4701/8/4/237 |
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