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Eggeler, Mario (2017) 3D-Analysis of Fatigue Damage in Superalloys for Turbine Blades. Bachelor's, Technische Hochschule Köln.
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Abstract
The present work uses scanning electron microscopy (SEM) in combination with a three dimensional (3D) analysis of multiple sections, which were produced using focused ion beam (FIB) micromachining to analyze the microstructural features which influence the evolution of microstructure during high temperature fatigue. Microstructural analysis is performed on miniature fatigue samples which were tested at 950°C. Special emphasis is placed on regions close to the specimen surface where the precipitation of topologically closed packed (TCP) phases during fatigue loading is observed. The morphology of TCP phases in this selected region will be investigated, focusing on volume fraction, size distribution, shape and spatial arrangement with respect to microstructural deformation features in the specimen.
| Item URL in elib: | https://elib.dlr.de/115749/ | ||||||||
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| Document Type: | Thesis (Bachelor's) | ||||||||
| Title: | 3D-Analysis of Fatigue Damage in Superalloys for Turbine Blades | ||||||||
| Authors: |
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| Date: | July 2017 | ||||||||
| Refereed publication: | Yes | ||||||||
| Open Access: | No | ||||||||
| Gold Open Access: | No | ||||||||
| In SCOPUS: | No | ||||||||
| In ISI Web of Science: | No | ||||||||
| Status: | Published | ||||||||
| Keywords: | Microstructure, super alloy, FIB and Slice, 3-D-Imaging | ||||||||
| Institution: | Technische Hochschule Köln | ||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||
| HGF - Program: | Aeronautics | ||||||||
| HGF - Program Themes: | propulsion systems | ||||||||
| DLR - Research area: | Aeronautics | ||||||||
| DLR - Program: | L ER - Engine Research | ||||||||
| DLR - Research theme (Project): | L - Virtual Engine and Validation methods (old) | ||||||||
| Location: | Köln-Porz | ||||||||
| Institutes and Institutions: | Institute of Materials Research > Experimental and Numerical Methods | ||||||||
| Deposited By: | Bartsch, Dr.-Ing. Marion | ||||||||
| Deposited On: | 21 Nov 2017 14:33 | ||||||||
| Last Modified: | 21 Nov 2017 14:33 |
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