| contributor author | K. S. Chan | |
| contributor author | N. S. Cheruvu | |
| contributor author | G. R. Leverant | |
| date accessioned | 2017-05-08T23:59:34Z | |
| date available | 2017-05-08T23:59:34Z | |
| date copyright | July, 1999 | |
| date issued | 1999 | |
| identifier issn | 1528-8919 | |
| identifier other | JETPEZ-26790#484_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/122124 | |
| description abstract | A life prediction method for combustion turbine blade coatings has been developed by modeling coating degradation mechanisms including oxidation, spallation, and aluminum loss due to inward diffusion. Using this model, the influence of cycle time on coating life is predicted for GTD-111 coated with an MCrAlY, PtAl, or aluminide coating. The results are used to construct a coating life diagram that depicts failure and safe regions for the coating in a log-log Plot of number of startup cycles versus cycle time. The regime where failure by oxidation, spallation, and inward diffusion dominates is identified and delineated from that dominated by oxidation and inward diffusion only. A procedure for predicting the remaining life of a coating is developed. The utility of the coating life diagram for predicting the failure and useful life of MCrAlY, aluminide, or PtAl coatings on the GTD-111 substrate is illustrated and compared against experimental data. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Coating Life Prediction for Combustion Turbine Blades | |
| type | Journal Paper | |
| journal volume | 121 | |
| journal issue | 3 | |
| journal title | Journal of Engineering for Gas Turbines and Power | |
| identifier doi | 10.1115/1.2818498 | |
| journal fristpage | 484 | |
| journal lastpage | 488 | |
| identifier eissn | 0742-4795 | |
| keywords | Coating processes | |
| keywords | Coatings | |
| keywords | Turbine blades | |
| keywords | Combustion | |
| keywords | Diffusion (Physics) | |
| keywords | Cycles | |
| keywords | Failure | |
| keywords | oxidation | |
| keywords | Spallation (Nuclear physics) | |
| keywords | Modeling | |
| keywords | Mechanisms AND Aluminum | |
| tree | Journal of Engineering for Gas Turbines and Power:;1999:;volume( 121 ):;issue: 003 | |
| contenttype | Fulltext | |