Microstructure and mechanical properties of Inconel-625 slab component fabricated by wire arc additive manufacturing
- 29 October 2020
- journal article
- research article
- Published by SAGE Publications in Materials Science and Technology
- Vol. 36 (16) , 1785-1795
Abstract
Wire arc additive manufacturing is a promising reliable free-form fabrication technique suitable for producing large-scale components that feature a very low buy-to-fly ratio. This research work is aimed to fabricate a rectangular prototype Inconel-625 alloy slab using a robotic metal inert gas welding system. The microstructure and mechanical properties of as-deposited and solution-annealed (SA) alloys were investigated. It was found that the as-deposited alloy exhibited a columnar dendritic structure and the presence of intermetallic phases such as the Laves phase, NbC and carbides were observed in the gamma-nickel matrix. In SA deposit, the intermetallic phases were dissolved in the NiCr-matrix and the secondary carbides M23C6, M6C were also observed in the microstructure. It was found that the ultimate tensile strength and microhardness of the as-deposited alloy were higher than that of SA deposit.Keywords
This publication has 23 references indexed in Scilit:
- Microstructural Evolution and Mechanical Properties of Inconel 625 Alloy during Pulsed Plasma Arc Deposition ProcessJournal of Materials Science & Technology, 2013
- Effect of deposition strategy on the microstructure and mechanical properties of Inconel 625 superalloy fabricated by pulsed plasma arc depositionMaterials & Design (1980-2015), 2013
- Laser additive manufacturing of metallic components: materials, processes and mechanismsInternational Materials Reviews, 2012
- The microstructure and mechanical properties of deposited-IN718 by selective laser meltingJournal of Alloys and Compounds, 2012
- Laser aided direct metal deposition of Inconel 625 superalloy: Microstructural evolution and thermal stabilityMaterials Science and Engineering: A, 2009
- Potential of direct metal deposition technology for manufacturing thick functionally graded coatings and parts for reactors componentsJournal of Nuclear Materials, 2009
- Investigating laser rapid manufacturing for Inconel-625 componentsOptics & Laser Technology, 2007
- Residual stresses in LENS® components using neutron diffraction and contour methodMaterials Science and Engineering: A, 2005
- Weld deposition-based rapid prototyping: a preliminary studyJournal of Materials Processing Technology, 2003
- Microstructure and mechanical properties of Inconel 625 superalloyJournal of Nuclear Materials, 2001