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Effect of HIP parameters on the micro-structural evolution of a Ni-based superalloy

Lopez-Galilea, Inmaculada and Huth, Stefan and Bartsch, Marion and Theisen, Werner (2010) Effect of HIP parameters on the micro-structural evolution of a Ni-based superalloy. In: Scientific net - materials science and engineering. European Symposium on Superalloys and their Application, 25.-29. Mai 2010, Wildbad Kreuth, Deutschland.

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Official URL: http://www.scientific.net/


For reducing the porosity of single crystal (SX) nickel-based superalloys, Hot Isostatic Pressing (HIP) is used. The high pressure of e.g. 100-170 MPa leads to deformation processes, which close the pores. However, since HIP also includes high temperatures (1000-1200°C) it has a pronounced effect on the microstructure and the local element distribution. This contribution analyses the effect of different HIP treatments on both the microstructure and the segregation of the SX superalloy LEK94 in the as precipitation hardened state. In addition the effects of rapid or slow cooling are analyzed. To distinguish the effect of pressure from temperature, the previous results are compared with specimens annealed at atmospheric pressure.

Item URL in elib:https://elib.dlr.de/66814/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Effect of HIP parameters on the micro-structural evolution of a Ni-based superalloy
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Lopez-Galilea, InmaculadaRuhr-Universität BochumUNSPECIFIEDUNSPECIFIED
Huth, StefanRuhr-Universität BochumUNSPECIFIEDUNSPECIFIED
Theisen, WernerRuhr-Universität BochumUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:Scientific net - materials science and engineering
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Hot Isostatic Pressing (HIP), Diffusion, Single Crystal, Microstructure, Ni-based superalloys
Event Title:European Symposium on Superalloys and their Application
Event Location:Wildbad Kreuth, Deutschland
Event Type:international Conference
Event Dates:25.-29. Mai 2010
Organizer:Deutsche Gesellschaft für Materialkunde
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems (old)
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:30 Nov 2010 11:09
Last Modified:30 Nov 2010 11:09

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