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Title: Microstructural Properties of Gamma Titanium Aluminide Manufactured by Electron Beam Melting

Microstructural Properties of Gamma Titanium Aluminide Manufactured by Electron Beam Melting 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 geometries too complex to be fabricated by other methods, e.g. 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, i.e. . titanium compounds. We present material data from a recently conducted study of how melt strategy affects EBM process for gamma titanium aluminide, Ti-48Al-2Cr-2Nb.The investigation includes microstructural characterization, grain size measurement and tensile testing.
Authors: ; ; ; ; ;
Publication Date:
OSTI Identifier:OSTI ID: 1025415
DOE Contract Number:DE-AC05-00OR22725
Resource Type:Conference
Resource Relation:Conference: TMS 2011, San Diego, CA, USA, 20110227, 20110303
Research Org:Oak Ridge National Laboratory (ORNL)
Sponsoring Org:EE USDOE - Office of Energy Efficiency and Renewable Energy (EE)
Country of Publication:United States
Language:English
Subject: 36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ADDITIVES; AFFINITY; CAVITIES; ELECTRON BEAM MELTING; ELECTRON BEAMS; GRAIN SIZE; MANUFACTURING; OXYGEN; TESTING; TITANIUM; TITANIUM COMPOUNDS