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As-HIP Microstructure of EBM Fabricated Shell Components
Chalmers.
Chalmers.
Chalmers.
Chalmers.
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2016 (English)In: Proceedings of Wolrd PM2016 - AM - Properties of Lightweight Materials ll, 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
2016.
Keyword [en]
Additive manufacturing, microstructure of EBM-build components, EBM of Ti64 shell structures, hot isostatic pressing
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:miun:diva-29743OAI: oai:DiVA.org:miun-29743DiVA: diva2:1058862
Conference
World Powder Metallurgy Congress, Hamburg, Germany, October 9-13, 2016
Available from: 2016-12-21 Created: 2016-12-21 Last updated: 2016-12-29Bibliographically approved

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Rännar, Lars-ErikKoptyug, Andrey

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Rännar, Lars-ErikKoptyug, Andrey
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Department of Quality Technology and Management, Mechanical Engineering and Mathematics
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