| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Polcar, Tomas
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2023Dense nanocrystalline W alloys: Enhancement of hardness and thermal stability by Al additioncitations
- 2023Influence of HCP/BCC interface orientation on the tribological behavior of Zr/Nb multilayer during nanoscratch: A combined experimental and atomistic studycitations
- 2023Interfacial characteristics of austenitic 316L and martensitic 15-5PH stainless steels joined by laser powder bed fusioncitations
- 2022The mechanised testing and sequential wear-analysis of replica Bronze Age palstave bladescitations
- 2022Enhanced erosion resistance of anti-reflective TiO2/SiO2 coatings induced by Zr-oxide doping
- 2022Effects of rescanning parameters on densification and microstructural refinement of 316L stainless steel fabricated by laser powder bed fusioncitations
- 2021Investigation on the thermodynamic stability of nanocrystalline W-based alloys: a combined theoretical and experimental approachcitations
- 2021Fabrication of nanocrystalline supersaturated W–Al alloys with enhanced thermal stability and high sinterabilitycitations
- 2021Phase behaviour of (Ti:Mo) S2 binary alloys arising from electron-lattice couplingcitations
- 2021Phototribology: control of friction by lightcitations
- 2020Deformation behavior of nanocrystalline body-centered cubic iron with segregated, foreign interstitial: A molecular dynamics studycitations
- 2020Comparative study of DC and RF sputtered MoSe22 coatings containing carbon - An approach to optimize 3 stoichiometry, microstructure, crystallinity and 4 hardnesscitations
- 2020A 2D finite element approach for predicting the machining performance of nanolayered TiAlCrN coating on WC-Co cutting tool during dry turning of AISI 1045 steelcitations
- 2020The fabrication of high strength Zr/Nb nanocomposites using high-pressure torsioncitations
- 2020Synthesis and structural properties of Mo-S-N sputtered coatingscitations
- 2019Deformation-controlled design of metallic nanocompositescitations
- 2019Mechanical properties and microstructural stability of CuTa/Cu composite coatingscitations
- 20172H → 1T phase engineering of layered tantalum disulphides in electrocatalysis: oxygen reduction reactioncitations
- 2017Combined size and texture-dependent deformation and strengthening mechanisms in Zr/Nb nano-multilayerscitations
- 2016Structural, mechanical and functional properties of irradiated multilayer nanocomposites
- 2016Engineering PDMS topography on microgrooved Parylene C
- 2016Evolution of structural, mechanical and tribological properties of Ni–P/MWCNT coatings as a function of annealing temperaturecitations
- 2015Friction force microscopy analysis of self-adaptive W-S-C coatings:nanoscale friction and wearcitations
- 2015Friction force microscopy analysis of self-adaptive W-S-C coatingscitations
- 2015Stress-induced martensitic transformation in Ni–Ti(–Cu) interlayers controlling stress distribution in functional coatings during slidingcitations
- 2014The effect of increasing V content on the structure, mechanical properties and oxidation resistance of Ti–Si–V–N films deposited by DC reactive magnetron sputteringcitations
- 2013Self-lubricating W-S-C-Cr tribological coatings deposited by r.f. magnetron sputtering
- 2013Zr-DLC coatings - analysis of the friction and wear mechanisms
Places of action
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article
Effects of rescanning parameters on densification and microstructural refinement of 316L stainless steel fabricated by laser powder bed fusion
Abstract
A challenge with microstructural control and refinement in laser powder bed fusion (LPBF) is maintaining high density when choosing parameters for desired microstructures. Rescanning during LPBF has been reported to improve densification and decrease surface roughness for many different alloys. However, little has been reported regarding the effects of locally rescanning with varying processing parameters on sub-grain cell size refinement for 316L stainless steel (SS). This study presents a novel solution to enable high densification with microstructural control in 316L SS by using a set of initial scanning parameters to achieve densification and a different set of rescanning parameters to refine the microstructure. Results showed that rescanning resulted in heterogeneous microstructure with coarse cell size of 0.84 μm and locally refined cell size of 0.35 μm, while maintaining a high level of densification (99.96 %), therefore enabling potential variations in component strength and hardness. The spatial distribution of local microstructure refinement was dictated by the melt pool dimensions of initial scanning and rescanning relative to the powder layer thickness. To better understand the link between LPBF process parameters and microstructure, the Wilson-Rosenthal equation was used to predict cooling rate (G × R) and correlate with sub-grain cell size. Such variation in properties may be useful for applications requiring parts with hardened surfaces, or localized strengthening at stress concentrations and sites of expected failure.