Crack repair of single crystal turbine blades using laser cladding technology

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dc.identifier.uri Rottwinkel, Boris Nölke, Christian Kaierle, Stefan Wesling, Volker 2019-03-27T11:46:27Z 2019-03-27T11:46:27Z 2014
dc.identifier.citation Rottwinkel, B.; Nölke, C.; Kaierle, S.; Wesling, V.: Crack repair of single crystal turbine blades using laser cladding technology. In: Procedia CIRP 22 (2014), Nr. 1, S. 263-267. DOI:
dc.description.abstract The formation of cracks in single crystal (SX) turbine blades is a common problem for aero-engines. To repair cracks, which are located under the tip-area, a new method is to clad with single-crystal-technology. This technology use multi-layer cladding to replace the single crystal material. To regenerate cracked material it is necessary to remove the crack affected material. The used notch geometries to remove the crackaffected area must be weldable and also permit the material solidification in the same oriented plane as the original microstructure. To solidify in the original structure a thermal gradient has to be introduced in order to guide the grain growth. This required gradient can be established by inductive heating. To reduce the thermal effected zone, a laser source is used. In addition, it is also an efficient process to fill the notch. Also the small local heat input and controlled material supply support the epitaxial growth. However, there are requirements to achieve a SX structure without cracks and pores. Current achievements and further challenges are presented in this paper. eng
dc.language.iso eng
dc.publisher Amsterdam : Elsevier B.V.
dc.relation.ispartof 3rd International Conference in Through-life Engineering Services, 2014, November 4-5, 2014, Cranfield, United Kingdom
dc.relation.ispartofseries Procedia CIRP 22 (2014), Nr. 1
dc.rights CC BY-NC-ND 3.0 Unported
dc.subject Laser cladding eng
dc.subject Single crystalline eng
dc.subject Turbine blade repair eng
dc.subject Aircraft engines eng
dc.subject Cladding (coating) eng
dc.subject Cracks eng
dc.subject Grain growth eng
dc.subject Laser cladding eng
dc.subject Repair eng
dc.subject Single crystals eng
dc.subject Turbine components eng
dc.subject Turbines eng
dc.subject Cracked materials eng
dc.subject Efficient process eng
dc.subject Laser cladding technology eng
dc.subject Original structures eng
dc.subject Single crystal turbine blades eng
dc.subject Single-crystal materials eng
dc.subject Single-crystalline eng
dc.subject Turbine blade eng
dc.subject Turbomachine blades eng
dc.subject.ddc 600 | Technik ger
dc.subject.ddc 670 | Industrielle und handwerkliche Fertigung ger
dc.title Crack repair of single crystal turbine blades using laser cladding technology
dc.type article
dc.type conferenceObject
dc.type Text
dc.relation.issn 2212-8271
dc.bibliographicCitation.issue 1
dc.bibliographicCitation.volume 22
dc.bibliographicCitation.firstPage 263
dc.bibliographicCitation.lastPage 267
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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    Frei zugängliche Publikationen aus An-Instituten der Leibniz Universität Hannover

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