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Microstructural Characterization of AS-Manufactured and Heat Treated Electron Beam Melted Inconel 718
Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Konstruktionsmaterial. Linköpings universitet, Tekniska fakulteten.
Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Konstruktionsmaterial. Linköpings universitet, Tekniska fakulteten.
AB Sandvik Coromant, Sandviken.
Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Konstruktionsmaterial. Linköpings universitet, Tekniska fakulteten.
Vise andre og tillknytning
2016 (engelsk)Inngår i: Materials Science and Technology 2016 (MS&T16): Proceedings, Warrendale, PA: Materials Science & Technology , 2016, s. 105-112Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

As manufactured and heat treated electron beam melted Inconel 718 exhibit inhomogeneous grain morphologies, mainly equiaxed close to the surface and more elongated columnar grains in the bulk. Different processing settings i.e., contouring in the surface region and hatching in the bulk region are responsible for differences in grain morphologies and textures, which are characterized using the SEM techniques electron contrast channeling imagine (ECCI) and electron backscattering diffraction (EBSD). Niobium carbides prefer to nucleate at TiN and are found to be in the grain growth direction. Regarding processing conditions, defects, such as porosities and segregations are discussed, as well as differences in microstructure emphasizing on grain morphologies and precipitates with regards to heat treatment and hardness indentation.

sted, utgiver, år, opplag, sider
Warrendale, PA: Materials Science & Technology , 2016. s. 105-112
Emneord [en]
Electron beam melting, IN718, microstructure, texture, hardness
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-132646OAI: oai:DiVA.org:liu-132646DiVA, id: diva2:1047861
Konferanse
Materials Science and Technology 2016 (MS&T16), Salt Lake City, USA October 23-27, 2016
Tilgjengelig fra: 2016-11-18 Laget: 2016-11-18 Sist oppdatert: 2016-12-02bibliografisk kontrollert

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