Microstructural properties of gamma titanium aluminide manufactured by electron beam melting

Sanna Fager Franzén, Joakim Karlsson, Ryan Dehoff, Ulf Ackelid, Orlando Rios, Chad Parish, William Peters

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

In recent years, Electron Beam Melting (EBM) has matured as a technology for additive manufacturing of dense metal parts. The parts are built by additive consolidation of thin layers of metal powder using an electron beam. With EBM, it is possible to create parts with complex geometries unable to be fabricated by other methods, examples being fine network structures and internal cavities. The process is run in vacuum, which makes it well suited for materials with a high affinity to oxygen, such as γ. titanium compounds. We present material data from a recently conducted study of the effect of EBM process melt strategy on γ-titanium aluminide, Ti-48Al-2Cr-2Nb. The investigation includes microstructural characterization, gram size measurement and tensile testing.

Original languageEnglish
Title of host publicationTMS 2011 - 140th Annual Meeting and Exhibition, Supplemental Proceedings
Pages455-462
Number of pages8
StatePublished - 2011
EventTMS 2011 - 140th Annual Meeting and Exhibition - San Diego, CA, United States
Duration: Feb 27 2011Mar 3 2011

Publication series

NameTMS Annual Meeting
Volume3

Conference

ConferenceTMS 2011 - 140th Annual Meeting and Exhibition
Country/TerritoryUnited States
CitySan Diego, CA
Period02/27/1103/3/11

Keywords

  • Additive manufacturing
  • EBM
  • Electron beam melting
  • Gamma titanium aluminide
  • Grain size
  • Metal powder
  • Microstructure
  • Tensile strength
  • Ti-48Al-2Cr-2Nb
  • γ-TiAl

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