Hybrid additive manufacturing of gamma titanium aluminide space hardware

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Contributors

  • André Seidel - , Fraunhofer Institute for Material and Beam Technology (Author)
  • Elena Lopez - , Fraunhofer Institute for Material and Beam Technology (Author)
  • Shuvra Saha - , Fraunhofer Institute for Material and Beam Technology (Author)
  • Tim Maiwald - , Chair of Materials Technology, Fraunhofer Institute for Material and Beam Technology, TUD Dresden University of Technology (Author)
  • Juliane Moritz - , Fraunhofer Institute for Material and Beam Technology (Author)
  • Stefan Polenz - , Chair of Materials Technology, Fraunhofer Institute for Material and Beam Technology (Author)
  • Axel Marquardt - , Chair of Materials Technology, Fraunhofer Institute for Material and Beam Technology, TUD Dresden University of Technology (Author)
  • Joerg Kaspar - , Fraunhofer Institute for Material and Beam Technology (Author)
  • Thomas Finaske - , Fraunhofer Institute for Material and Beam Technology (Author)
  • Mirko Riede - , Fraunhofer Institute for Material and Beam Technology (Author)
  • Frank Brueckner - , Fraunhofer Institute for Material and Beam Technology, Luleå University of Technology (Author)
  • Christoph Leyens - , Chair of Materials Technology, Fraunhofer Institute for Material and Beam Technology, TUD Dresden University of Technology (Author)

Abstract

A major part of laser additive manufacturing focuses on the fabrication of metallic parts for applications in the space and aerospace sector. Especially the processing of the very brittle titanium aluminides can be particularly challenging [1-2]. In the present paper a gamma titanium aluminide (?-TiAl) nozzle, manufactured via Electron Beam Melting (EBM), is extended and adapted via hybrid Laser Metal Deposition (LMD). The presented approach considers critical impacts like processing temperatures, temperature gradients and solidification conditions with particular regard to crucial material properties like the phenomena of lamellar interface cracking [3-6]. Furthermore, the potential of microstructural tailoring is going to be addressed by the process-specific manipulation of the composition and/or microstructure. In addition to this, selected destructive and non-destructive testing is performed in order to prove the material properties. Finally, post manufacturing and surface modification are briefly addressed.

Details

Original languageEnglish
Title of host publicationMaterials Science and Technology 2018, MS and T 2018
PublisherAssociation for Iron and Steel Technology, AISTECH
Pages13-21
Number of pages9
ISBN (electronic)0873397681, 9780873397681
Publication statusPublished - 2018
Peer-reviewedYes

Publication series

SeriesMaterials Science & Technology Conference and Exhibition (MS&T)

Conference

TitleMaterials Science and Technology 2018
Abbreviated titleMS and T 2018
Duration14 - 18 October 2018
CityColumbus
CountryUnited States of America

External IDs

ORCID /0000-0001-8126-8532/work/173053209

Keywords

Keywords

  • Crack Prevention, Electron Beam Melting, Energy Source Coupling, Gamma Titanium Aluminides, Hybrid Additive Manufacturing, Laser Additive Manufacturing