Repository logo
 

Effect of NbC inoculants on the elastic properties and microstructure of additively manufactured IN718

Accepted version
Peer-reviewed

Type

Article

Change log

Authors

Carpenter, MA 
Thompson, RP 

Abstract

In this study, the effects of NbC inoculants on the elastic properties and microstructure of laser blown powder-directed energy deposition (LBP-DED) IN718 are investigated. The addition of the NbC particles increased the volume fraction of MC-type carbides and decreased that of the Laves phase. It was found that the inoculant containing samples exhibited a marginally increased hardness and an enhanced Brass texture component {110} <211>. The occurrence of this textural enhancement is theorised to be a result of the NbC restricting dendritic growth along specific directions during build. The addition of the inoculant therefore offers a method of achieving a degree of microstructural and textural control during additive manufacturing

Description

Keywords

Nickel alloys, Laser methods, Electron microscopy, Texture & anisotropy, Inoculants, Additive manufacturing, Other

Journal Title

Materialia

Conference Name

Journal ISSN

2589-1529
2589-1529

Volume Title

Publisher

Elsevier BV
Sponsorship
Engineering and Physical Sciences Research Council (EP/I036079/1)
Natural Environment Research Council (NE/F017081/1)
NERC Grants No. NE/B505738/1 and No. NE/F017081/1 EPSRC Grant No. EP/I036079/1
Relationships
Is supplemented by: