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Title: Effects of the TiC nanoparticle on microstructures and tensile properties of selective laser melted IN718/TiC nanocomposites
Authors: Yao, Xiling
Moon, Seung Ki
Lee, Bing Yang
Bi, Guijun
Keywords: DRNTU::Engineering::Mechanical engineering
TiC Nanoparticle
Selective Laser Melting
Issue Date: 2018
Source: Yao, X., Moon, S. K., Lee, B. Y., & Bi, G. (2018). Effects of the TiC nanoparticle on microstructures and tensile properties of selective laser melted IN718/TiC nanocomposites. IOP Conference Series: Materials Science and Engineering, 317, 012074-. doi:10.1088/1757-899X/317/1/012074
Series/Report no.: IOP Conference Series: Materials Science and Engineering
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.
DOI: 10.1088/1757-899X/317/1/012074
Rights: © 2018 The Author(s) (IOP Publishing). Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Conference Papers

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