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Metallurgical Response of Electron Beam Welded Allvac® 718Plus™
University West, Department of Engineering Science, Division of Manufacturing Processes. Volvo Aero Corporation, Trollhättan, Sweden och Chalmers University of Technology, Gothenburg, Sweden. (PTW)ORCID iD: 0000-0001-9065-0741
Volvo Aero Corporation, Trollhättan, Sweden och Chalmers University of Technology, Gothenburg, Sweden.
Aalto University School of Science and Technology, Espoo, Finland.
2011 (English)In: Hot Cracking Phenomena in Welds III / [ed] Lippold, J., Böllinghaus, T. and Cross C. E., Springer Berlin/Heidelberg, 2011, 415-428 p.Conference paper (Refereed)
Abstract [en]

Electron beam welding of forged Allvac 718Plus superalloy has been carried out without any visible cracks in weld cross-sections. Healed cracks in the heat affected zone were, however, seen in most cross-sections with the healing as well as the cracking believed to be due to the constitutional liquation of the δ-phase. The δ-phase undergoes constitutional liquation in the Heat Affected Zone (HAZ) and consequently decreases the ductility of the material and renders cracks in the HAZ but due to the large amount of eutectic liquid produced at the same time the healing of the opened cracks takes place.

Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2011. 415-428 p.
Keyword [en]
Electron beam welding, Allvac 718Plus
National Category
Metallurgy and Metallic Materials Manufacturing, Surface and Joining Technology
Research subject
Production Technology; ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-8996DOI: 10.1007/978-3-642-16864-2_21ISBN: 9783642168635 (print)OAI: oai:DiVA.org:hv-8996DiVA: diva2:900740
Conference
3rd International Hot Cracking Workshop in Columbus, Ohio, USA, March, 2010
Available from: 2016-02-05 Created: 2016-02-05 Last updated: 2016-02-10Bibliographically approved

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CiteExportLink to record
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