Failure Analysis of a Centrifugal Compressor Impeller Made of 17-4PH Steel in the Moist Hydrogen Sulfide Environment
The impeller under consideration is a rotor wheel of a centrifugal compressor, made of 17-4PH martensitic precipitated hardening stainless steel. Its total operating lifetime was estimated to 80,000 h, but it fractured beforehand, 4 days after the scheduled overhaul without any observed pre-symptoms...
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| Format: | Članak |
| Jezik: | English |
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MDPI AG
2022-06-01
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| Serija: | Energies |
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| Online pristup: | https://www.mdpi.com/1996-1073/15/12/4183 |
| _version_ | 1827660633640796160 |
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| author | Jakub Łagodziński Zbigniew Kozanecki Eliza Tkacz |
| author_facet | Jakub Łagodziński Zbigniew Kozanecki Eliza Tkacz |
| author_sort | Jakub Łagodziński |
| collection | DOAJ |
| description | The impeller under consideration is a rotor wheel of a centrifugal compressor, made of 17-4PH martensitic precipitated hardening stainless steel. Its total operating lifetime was estimated to 80,000 h, but it fractured beforehand, 4 days after the scheduled overhaul without any observed pre-symptoms. The important causes of the failure were its working conditions: a moist H<sub>2</sub>S environment, the applied shaft fitting stress, and the martensitic structure of its material. In the article the post-failure analysis of an impeller is described, explaining the root cause of the impeller failure by means of both experimental and Finite Element Methods (FEM). Sulfide Stress Cracking (SSC) was found to be the primary failure mechanism for the impeller under investigation. Details of the investigations and possible corrective measures to improve performance impellers used under harsh environment conditions are discussed. |
| first_indexed | 2024-03-09T23:54:23Z |
| format | Article |
| id | doaj.art-3b1b898956a6490ca70455f3b8093e3c |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T23:54:23Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-3b1b898956a6490ca70455f3b8093e3c2023-11-23T16:26:54ZengMDPI AGEnergies1996-10732022-06-011512418310.3390/en15124183Failure Analysis of a Centrifugal Compressor Impeller Made of 17-4PH Steel in the Moist Hydrogen Sulfide EnvironmentJakub Łagodziński0Zbigniew Kozanecki1Eliza Tkacz2Institute of Turbomachinery, Lodz University of Technology, 90-924 Lodz, PolandInstitute of Turbomachinery, Lodz University of Technology, 90-924 Lodz, PolandInstitute of Turbomachinery, Lodz University of Technology, 90-924 Lodz, PolandThe impeller under consideration is a rotor wheel of a centrifugal compressor, made of 17-4PH martensitic precipitated hardening stainless steel. Its total operating lifetime was estimated to 80,000 h, but it fractured beforehand, 4 days after the scheduled overhaul without any observed pre-symptoms. The important causes of the failure were its working conditions: a moist H<sub>2</sub>S environment, the applied shaft fitting stress, and the martensitic structure of its material. In the article the post-failure analysis of an impeller is described, explaining the root cause of the impeller failure by means of both experimental and Finite Element Methods (FEM). Sulfide Stress Cracking (SSC) was found to be the primary failure mechanism for the impeller under investigation. Details of the investigations and possible corrective measures to improve performance impellers used under harsh environment conditions are discussed.https://www.mdpi.com/1996-1073/15/12/4183failure analysiscompressor impeller fracturesulfide stress cracking |
| spellingShingle | Jakub Łagodziński Zbigniew Kozanecki Eliza Tkacz Failure Analysis of a Centrifugal Compressor Impeller Made of 17-4PH Steel in the Moist Hydrogen Sulfide Environment Energies failure analysis compressor impeller fracture sulfide stress cracking |
| title | Failure Analysis of a Centrifugal Compressor Impeller Made of 17-4PH Steel in the Moist Hydrogen Sulfide Environment |
| title_full | Failure Analysis of a Centrifugal Compressor Impeller Made of 17-4PH Steel in the Moist Hydrogen Sulfide Environment |
| title_fullStr | Failure Analysis of a Centrifugal Compressor Impeller Made of 17-4PH Steel in the Moist Hydrogen Sulfide Environment |
| title_full_unstemmed | Failure Analysis of a Centrifugal Compressor Impeller Made of 17-4PH Steel in the Moist Hydrogen Sulfide Environment |
| title_short | Failure Analysis of a Centrifugal Compressor Impeller Made of 17-4PH Steel in the Moist Hydrogen Sulfide Environment |
| title_sort | failure analysis of a centrifugal compressor impeller made of 17 4ph steel in the moist hydrogen sulfide environment |
| topic | failure analysis compressor impeller fracture sulfide stress cracking |
| url | https://www.mdpi.com/1996-1073/15/12/4183 |
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