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Fatigue properties of Ti-6Al-4V manufactured using electron beam melting
Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.ORCID iD: 0000-0001-5954-5898
2017 (English)In: Euro PM2017 Proceedings, Brussels: EPMA European Powder Metallurgy Association , 2017Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

The interest in powder bed fusion additive manufacturing methods, such as electron beam melting (EBM), is increasing constantly and main business areas driving the development are aerospace and implant manufacturers. EBM manufactured parts have a rather coarse surface roughness mainly originating from the layer thickness and the powder grains melted by the electron beam. Thus, there is an interest in understanding how the surface properties influences the fatigue performance of the material. In this study, EBM manufactured Ti-6Al-4V was investigated at high cycle fatigue using rotating beam and different types of specimens regarding geometry, as-built and hot isostatic pressing (HIP) post-processing were evaluated. The results confirm that as-built surfaces affect the fatigue limit and a small size specimen geometry for rotating beam fatigue testing is proposed as a part of material and process verification.

Place, publisher, year, edition, pages
Brussels: EPMA European Powder Metallurgy Association , 2017.
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:miun:diva-32484ISBN: 978-1-899072-49-1 (electronic)OAI: oai:DiVA.org:miun-32484DiVA, id: diva2:1167424
Conference
Euro PM2017, Milan, Italy, 1-5 October, 2017
Available from: 2017-12-18 Created: 2017-12-18 Last updated: 2018-01-11Bibliographically approved

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Klingvall Ek, RebeccaBäckström, MikaelRännar, Lars-Erik

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