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Effects of the TiC Nanoparticle on Microstructures and Tensile Properties of Selective Laser Melted IN718/TiC Nanocomposites
- Source :
- IOP Conference Series: Materials Science and Engineering. 317:012074
- Publication Year :
- 2018
- Publisher :
- IOP Publishing, 2018.
-
Abstract
- The purpose of this paper is to investigate the effects of TiC nanoparticle content on microstructures and tensile properties of the IN718/TiC nanocomposites fabricated by selective laser melting (SLM). 0.5wt%, 1.0wt%, and 2.0wt% of TiC nanoparticles are added to the IN718 powders. The bulk-form IN718/TiC nanocomposites with different TiC contents are fabricated in-situ by SLM using the same process settings. The evolution of microstructures and tensile properties as the effect of changing the TiC content is studied using the optical microscopy, scanning electron microscopy, X-ray diffraction analysis, and tensile testing. The increase of TiC content refines the microstructure, promotes the formation of the cellular morphology, and reduces the size and continuity of Laves precipitates. Increasing the TiC content improves the yield strength and ultimate tensile strength but decreases the ductility. The grain refinement, dislocation bowing, dislocation punching, and the reduction in Laves precipitate contribute to the strengthening effect in the IN718/TiC nanocomposites. NRF (Natl Research Foundation, S’pore) Published version
- Subjects :
- 0209 industrial biotechnology
Materials science
Nanocomposite
Scanning electron microscope
TiC Nanoparticle
02 engineering and technology
021001 nanoscience & nanotechnology
Microstructure
law.invention
Engineering::Mechanical engineering [DRNTU]
020901 industrial engineering & automation
Optical microscope
law
Ultimate tensile strength
Selective Laser Melting
Composite material
Selective laser melting
0210 nano-technology
Ductility
Tensile testing
Subjects
Details
- ISSN :
- 1757899X and 17578981
- Volume :
- 317
- Database :
- OpenAIRE
- Journal :
- IOP Conference Series: Materials Science and Engineering
- Accession number :
- edsair.doi.dedup.....ae57611afaadaeebe4b846ee3212dc36