TY - GEN
T1 - As-HIP microstructure of EBM fabricated shell components
AU - Leicht, Alexander
AU - Sundaram, Maheswaran Vattur
AU - Yao, Yiming
AU - Hryha, Eduard
AU - Nyborg, Lars
AU - Rännar, Lars Erik
AU - Koptioug, Andrei
AU - Frisk, Karin
AU - Ahlfors, Magnus
N1 - Funding Information:
Support from the Swedish Agency for Innovation Systems (VINNOVA) within the framework of the Challenge-driven Innovation program is acknowledged. Support from the Chalmers Areas of Advance in Materials Science and Production as well as funding from the strategic innovation program LIGHTer, provided by Vinnova, are gratefully acknowledged.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2016
Y1 - 2016
N2 - Electron Beam Melting (EBM) was used to build Ti-6Al-4V cylindrical shell samples with different wall thickness filled with powder. Built shell samples were HIPed and the difference in microstructure between the EBM-built walls and densified powder inside the shell components was studied as well as the cohesion between these two regions. Components characterization utilizing LOM and SEM+EBSD indicates that columnar grain growth was consistent before and after HIP in the EBM-built part of the components (walls), whereas the densified material in the center of the component had a fine isotropic microstructure, characteristic for HIPed material. The combination of EBM and HIP is shown to be an attractive way of manufacturing complex-shape full density components for high performance applications, involving shortening of built time in the EBM-processing and lead time in capsule fabrication for HIP.
AB - Electron Beam Melting (EBM) was used to build Ti-6Al-4V cylindrical shell samples with different wall thickness filled with powder. Built shell samples were HIPed and the difference in microstructure between the EBM-built walls and densified powder inside the shell components was studied as well as the cohesion between these two regions. Components characterization utilizing LOM and SEM+EBSD indicates that columnar grain growth was consistent before and after HIP in the EBM-built part of the components (walls), whereas the densified material in the center of the component had a fine isotropic microstructure, characteristic for HIPed material. The combination of EBM and HIP is shown to be an attractive way of manufacturing complex-shape full density components for high performance applications, involving shortening of built time in the EBM-processing and lead time in capsule fabrication for HIP.
KW - Additive manufacturing
KW - EBM of Ti64 shell structures
KW - Hot isostatic pressing
KW - Microstructure of EBM-build components
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M3 - Conference contribution
AN - SCOPUS:85035325325
T3 - World PM 2016 Congress and Exhibition
BT - World PM 2016 Congress and Exhibition
PB - European Powder Metallurgy Association (EPMA)
T2 - World Powder Metallurgy 2016 Congress and Exhibition, World PM 2016
Y2 - 9 October 2016 through 13 October 2016
ER -