Metallurgical Response of Electron Beam Welded Allvac® 718Plus™
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)
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.
Electron beam welding, Allvac 718Plus
Metallurgy and Metallic Materials Manufacturing, Surface and Joining Technology
Research subject Production Technology; ENGINEERING, Manufacturing and materials engineering
IdentifiersURN: urn:nbn:se:hv:diva-8996DOI: 10.1007/978-3-642-16864-2_21ISBN: 9783642168635OAI: oai:DiVA.org:hv-8996DiVA: diva2:900740
3rd International Hot Cracking Workshop in Columbus, Ohio, USA, March, 2010