Journal ArticleDOI
Thermal behavior of the molten pool, microstructural evolution, and tribological performance during selective laser melting of TiC/316L stainless steel nanocomposites: Experimental and simulation methods
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TLDR
In this paper, a simulation model was developed to enhance understanding of the manufacturability of these new materials, as well as to predict the temperature evolution and thermal behaviors of the molten pool under various volumetric laser energy densities.About:
This article is published in Journal of Materials Processing Technology.The article was published on 2018-07-01. It has received 115 citations till now. The article focuses on the topics: Selective laser melting & Grain size.read more
Citations
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Material-structure-performance integrated laser-metal additive manufacturing.
TL;DR: In this article, a holistic concept of material-structure-performance integrated additive manufacturing (MSPI-AM) is proposed to cope with the extensive challenges of laser-based additive manufacturing.
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Novel TiB2-reinforced 316L stainless steel nanocomposites with excellent room- and high-temperature yield strength developed by additive manufacturing
TL;DR: In this paper, the authors investigated how TiB2 nanoparticle reinforcements affect the microstructure and high-temperature deformation behavior of a 316L stainless steel matrix and proposed a novel microsegregation strengthening mechanism.
Journal ArticleDOI
Quantitative multiscale correlative microstructure analysis of additive manufacturing of stainless steel 316L processed by selective laser melting
TL;DR: In this paper, the authors assessed the microstructure details of 316L stainless steel produced by the additive-manufacturing selective-laser-melting technique under industrial conditions and correlated them with the mechanical properties.
Journal ArticleDOI
Effect of Hatch Spacing on Melt Pool and As-built Quality During Selective Laser Melting of Stainless Steel: Modeling and Experimental Approaches.
TL;DR: Simulation results illustrate that, when the optimized hatch spacing of 100 μm is adopted, fully dense parts with a smooth surface can be fabricated by SLM, thus experimentally validating the simulation results.
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Fabricating CoCrFeMnNi high entropy alloy via selective laser melting in-situ alloying
TL;DR: In this article, a quasi-equiatomic CoCrFeMnNi high entropy alloy (HEA) has been in-situ alloyed by selective laser melting (SLM) from a blend of pre-alloyed powder and Mn elemental powder.
References
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Journal ArticleDOI
Laser additive manufacturing of metallic components: materials, processes and mechanisms
TL;DR: Additive manufacturing implies layer by layer shaping and consolidation of powder feedstock to arbitrary configurations, normally using a computer controlled laser as discussed by the authors, which is based on a novel materials incremental manufacturing philosophy.
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Consolidation phenomena in laser and powder-bed based layered manufacturing
TL;DR: In this article, the authors describe which types of laser-induced consolidation can be applied to what type of material, and demonstrate that although SLS/SLM can process polymers, metals, ceramics and composites, quite some limitations and problems cause the palette of applicable materials still to be limited.
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Direct laser sintering of metal powders: Mechanism, kinetics and microstructural features
TL;DR: In this article, the densification and microstructural evolution during direct laser sintering of metal powders were studied, and it was found that when melting/solidification approach is the mechanism of sinter, the densifiers of metals powders (D ) can be expressed as an exponential function of laser specific energy input ( ψ ) as ln(1−− D )−= ǫ− Kψ.
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Novel Nanoparticle‐Reinforced Metal Matrix Composites with Enhanced Mechanical Properties
TL;DR: In this article, the state-of-the-art processing methods, structures and mechanical properties of the metal matrix composites reinforced with ceramic nanoparticles are summarized and reviewed, showing that in-situ nanocomposites with very low loading levels of nanoparticles exhibit higher yield strength and creep resistance than their microcomposite counterparts filled with much higher particulate content.