High temperature initiation and propagation of cracks in 12%Cr-steel turbine disks
This work aims to study the crack propagation in 12%Cr steel for turbine disks. Creep Crack Growth (CCG) tests on CT specimens have been performed to define the proper fracture mechanics which describes the initiation of the crack propagation and the crack growth behaviour for the material at high t...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2013-10-01
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| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero26/numero_26_art_12.pdf |
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| _version_ | 1841564294783696896 |
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| author | S. Foletti A. Lo Conte S. Salgarollo F. Bassi A. Riva |
| author_facet | S. Foletti A. Lo Conte S. Salgarollo F. Bassi A. Riva |
| author_sort | S. Foletti |
| collection | DOAJ |
| description | This work aims to study the crack propagation in 12%Cr steel for turbine disks. Creep Crack Growth (CCG) tests on CT specimens have been performed to define the proper fracture mechanics which describes the initiation of the crack propagation and the crack growth behaviour for the material at high temperature. Results have been used to study the occurrence of crack initiation on a turbine disk at the extreme working temperature and stress level experienced during service, and validate the use of C* integral in correlating creep growth rate on the disk component, in case C* is numerically calculated through FEM analysis or calculated by the use of reference stress concept. |
| format | Article |
| id | doaj-art-11ea4e8788ff41eb8e22aa29d5af6dee |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2013-10-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-11ea4e8788ff41eb8e22aa29d5af6dee2025-01-02T22:57:31ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932013-10-0172612313110.3221/IGF-ESIS.26.12High temperature initiation and propagation of cracks in 12%Cr-steel turbine disksS. FolettiA. Lo ConteS. SalgarolloF. BassiA. RivaThis work aims to study the crack propagation in 12%Cr steel for turbine disks. Creep Crack Growth (CCG) tests on CT specimens have been performed to define the proper fracture mechanics which describes the initiation of the crack propagation and the crack growth behaviour for the material at high temperature. Results have been used to study the occurrence of crack initiation on a turbine disk at the extreme working temperature and stress level experienced during service, and validate the use of C* integral in correlating creep growth rate on the disk component, in case C* is numerically calculated through FEM analysis or calculated by the use of reference stress concept.http://www.gruppofrattura.it/pdf/rivista/numero26/numero_26_art_12.pdfFracture mechanicsCreep Crack Growth12Cr steelC-integralReference stress |
| spellingShingle | S. Foletti A. Lo Conte S. Salgarollo F. Bassi A. Riva High temperature initiation and propagation of cracks in 12%Cr-steel turbine disks Fracture and Structural Integrity Fracture mechanics Creep Crack Growth 12Cr steel C-integral Reference stress |
| title | High temperature initiation and propagation of cracks in 12%Cr-steel turbine disks |
| title_full | High temperature initiation and propagation of cracks in 12%Cr-steel turbine disks |
| title_fullStr | High temperature initiation and propagation of cracks in 12%Cr-steel turbine disks |
| title_full_unstemmed | High temperature initiation and propagation of cracks in 12%Cr-steel turbine disks |
| title_short | High temperature initiation and propagation of cracks in 12%Cr-steel turbine disks |
| title_sort | high temperature initiation and propagation of cracks in 12 cr steel turbine disks |
| topic | Fracture mechanics Creep Crack Growth 12Cr steel C-integral Reference stress |
| url | http://www.gruppofrattura.it/pdf/rivista/numero26/numero_26_art_12.pdf |
| work_keys_str_mv | AT sfoletti hightemperatureinitiationandpropagationofcracksin12crsteelturbinedisks AT aloconte hightemperatureinitiationandpropagationofcracksin12crsteelturbinedisks AT ssalgarollo hightemperatureinitiationandpropagationofcracksin12crsteelturbinedisks AT fbassi hightemperatureinitiationandpropagationofcracksin12crsteelturbinedisks AT ariva hightemperatureinitiationandpropagationofcracksin12crsteelturbinedisks |