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As-HIP microstructure of EBM fabricated shell components
Chalmers University of Technology, Sweden.
Chalmers University of Technology, Sweden.
Chalmers University of Technology, Sweden.
Chalmers University of Technology, Sweden.
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2016 (English)In: World PM 2016 Congress and Exhibition, European Powder Metallurgy Association (EPMA) , 2016Conference paper, Published paper (Refereed)
Abstract [en]

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.

Place, publisher, year, edition, pages
European Powder Metallurgy Association (EPMA) , 2016.
Keywords [en]
Additive manufacturing, EBM of Ti64 shell structures, Hot isostatic pressing, Microstructure of EBM-build components, 3D printers, Aluminum alloys, Characterization, Fabrication, Grain growth, Manufacture, Microstructure, Powder metallurgy, Shells (structures), Titanium alloys, Vanadium alloys, Columnar grain, Cylindrical shell, High performance applications, Isotropic microstructures, Manufacturing complex, Shell structure, Ti-6 Al-4 V, Wall thickness, Walls (structural partitions)
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-42181Scopus ID: 2-s2.0-85035325325ISBN: 9781899072484 (print)OAI: oai:DiVA.org:ri-42181DiVA, id: diva2:1384187
Conference
World Powder Metallurgy 2016 Congress and Exhibition, World PM 2016, 9 October 2016 through 13 October 2016
Note

Funding details: Chalmers Tekniska Högskola; Funding details: VINNOVA; Funding text 1: 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.

Available from: 2020-01-09 Created: 2020-01-09 Last updated: 2020-01-09Bibliographically approved

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Citation style
  • apa
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