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Microstructure characterisation of Ti-6Al-4V from different additive manufacturing processes
Luleå University of Technology, Division of Materials Science, Luleå.
Luleå University of Technology, Division of Materials Science, Luleå.
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avdelningen för svetsteknologi (SV). (PTW)ORCID-id: 0000-0002-7675-7152
Luleå University of Technology, Division of Materials Science, Luleå.
2017 (Engelska)Ingår i: IOP Conference Series: Materials Science and Engineering, ISSN 1757-8981, E-ISSN 1757-899X, Vol. 258, s. 1-8, artikel-id 012007Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The focus of this work has been microstructure characterisation of Ti-6Al-4V manufactured by five different additive manufacturing (AM) processes. The microstructure features being characterised are the prior β size, grain boundary α and α lath thickness. It was found that material manufactured with powder bed fusion processes has smaller prior β grains than the material from directed energy deposition processes. The AM processes with fast cooling rate render in thinner α laths and also thinner, and in some cases discontinuous, grain boundary α. Furthermore, it has been observed that material manufactured with the directed energy deposition processes has parallel bands, except for one condition when the parameters were changed, while the powder bed fusion processes do not have any parallel bands.

Ort, förlag, år, upplaga, sidor
2017. Vol. 258, s. 1-8, artikel-id 012007
Nyckelord [en]
Additive manufacturing, processes
Nationell ämneskategori
Bearbetnings-, yt- och fogningsteknik
Forskningsämne
TEKNIK, Produktions- och materialteknik
Identifikatorer
URN: urn:nbn:se:hv:diva-11797DOI: 10.1088/1757-899X/258/1/012007Scopus ID: 2-s2.0-85035102621OAI: oai:DiVA.org:hv-11797DiVA, id: diva2:1159665
Konferens
International Materials Research Meeting in the Greater Region: "Current Trends in the Characterisation of Materials and Surface Modification"6–7 April 2017, Saarland University, Saarbrücken, Germany
Tillgänglig från: 2017-11-23 Skapad: 2017-11-23 Senast uppdaterad: 2019-05-21Bibliografiskt granskad

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