An investigation of the compatibility of nickel-based single crystal superalloys with thermal barrier coating systems
The compatibility of a number of nickel-based single crystal superalloys with a thermal barrier coating (TBC) system is examined. An industry-standard yttria-stabilised zirconia (YSZ)-type ceramic was used throughout this work, deposited using electron beam physical vapour deposition at a commercial...
| Asıl Yazarlar: | , , , |
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| Materyal Türü: | Journal article |
| Dil: | English |
| Baskı/Yayın Bilgisi: |
2008
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| _version_ | 1826287966882889728 |
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| author | Wu, RT Kawagishi, K Harada, H Reed, R |
| author_facet | Wu, RT Kawagishi, K Harada, H Reed, R |
| author_sort | Wu, RT |
| collection | OXFORD |
| description | The compatibility of a number of nickel-based single crystal superalloys with a thermal barrier coating (TBC) system is examined. An industry-standard yttria-stabilised zirconia (YSZ)-type ceramic was used throughout this work, deposited using electron beam physical vapour deposition at a commercial facility. It is demonstrated that the resistance to spallation during thermal cycling is dependent upon the composition of the superalloy substrate upon which the TBC system is placed - the number of cycles to failure is found to vary by up to a factor of three when identical TBC systems (bond coat, ceramic layer) are employed. Of the three different bond coat systems considered, a platinum-diffused (so-called low-cost bond coat) was found to be consistently better than both low-activity or high-activity platinum aluminide bond coats, but only marginally. The composition of the superalloy substrate is thus shown to be the primary factor in determining TBC life. |
| first_indexed | 2024-03-07T02:06:37Z |
| format | Journal article |
| id | oxford-uuid:9f37e841-5a25-4e03-a8d7-ee38e1ba8269 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:06:37Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:9f37e841-5a25-4e03-a8d7-ee38e1ba82692022-03-27T00:55:45ZAn investigation of the compatibility of nickel-based single crystal superalloys with thermal barrier coating systemsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9f37e841-5a25-4e03-a8d7-ee38e1ba8269EnglishSymplectic Elements at Oxford2008Wu, RTKawagishi, KHarada, HReed, RThe compatibility of a number of nickel-based single crystal superalloys with a thermal barrier coating (TBC) system is examined. An industry-standard yttria-stabilised zirconia (YSZ)-type ceramic was used throughout this work, deposited using electron beam physical vapour deposition at a commercial facility. It is demonstrated that the resistance to spallation during thermal cycling is dependent upon the composition of the superalloy substrate upon which the TBC system is placed - the number of cycles to failure is found to vary by up to a factor of three when identical TBC systems (bond coat, ceramic layer) are employed. Of the three different bond coat systems considered, a platinum-diffused (so-called low-cost bond coat) was found to be consistently better than both low-activity or high-activity platinum aluminide bond coats, but only marginally. The composition of the superalloy substrate is thus shown to be the primary factor in determining TBC life. |
| spellingShingle | Wu, RT Kawagishi, K Harada, H Reed, R An investigation of the compatibility of nickel-based single crystal superalloys with thermal barrier coating systems |
| title | An investigation of the compatibility of nickel-based single crystal superalloys with thermal barrier coating systems |
| title_full | An investigation of the compatibility of nickel-based single crystal superalloys with thermal barrier coating systems |
| title_fullStr | An investigation of the compatibility of nickel-based single crystal superalloys with thermal barrier coating systems |
| title_full_unstemmed | An investigation of the compatibility of nickel-based single crystal superalloys with thermal barrier coating systems |
| title_short | An investigation of the compatibility of nickel-based single crystal superalloys with thermal barrier coating systems |
| title_sort | investigation of the compatibility of nickel based single crystal superalloys with thermal barrier coating systems |
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