Effect of Process Parameters on Residual Stresses, Distortions, and Porosity in Selective Laser Melting of Maraging Steel 300
Lameck Mugwagwa,Igor Yadroitsev,Stephen Matope +2 more
- Vol. 9, Iss: 10, pp 1042
TLDR
Mugwagwa et al. as mentioned in this paper investigated the effect of process parameters on residual stresses, distortions, and porosity in selective laser melting of steel 300, and found that process parameters had little impact on the porosity.Abstract:
CITATION: Mugwagwa, L., Yadroitsev, I. & Matope, S. 2019. Effect of process parameters on residual stresses, distortions, and porosity in selective laser melting of maraging steel 300. Metals, 9(10):1042, doi:10.3390/met9101042.read more
Citations
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Laser Powder Bed Fusion of Precipitation-Hardened Martensitic Stainless Steels: A Review
TL;DR: In this paper, the microstructures of martensitic stainless steels in the as-built state, as well as the effects of process parameters, building atmosphere, and heat treatments on the micro-structures, are reviewed.
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Multi-scale defects in powder-based additively manufactured metals and alloys
TL;DR: In this paper , a review of multi-scale defects in AMed metals and alloys are identified and for the first time classified into three categories, including geometry related, surface integrity related and microstructural defects.
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A modified volumetric energy density–based approach for porosity assessment in additive manufacturing process design
TL;DR: In this paper, a modified volumetric energy density equation that takes into account the powder-heat source interaction to optimize the combination of power-scan speed values for porosity assessment in powder bed fusion process design is proposed and verified on both AlSi10Mg alloy and Maraging steel 300.
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Corrosion Behaviors of Selective Laser Melted Aluminum Alloys: A Review
TL;DR: In this paper, the microstructure features correlated with the corrosion behaviors were also reviewed and some suggestions on the future study of corrosion behaviors of SLMed Al alloys were put forward.
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Additive manufacturing of 18% nickel maraging steels: defect, structure and mechanical properties: A review
TL;DR: In this paper , the additive manufacturing of 18% nickel maraging steels is reviewed and various defects are formed with the use of inappropriate processing parameters, such as laser-based powder bed fusion (L-PBF), laserbased DED, and wire arc additive manufacturing (WAAM).
References
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A study of the microstructural evolution during selective laser melting of Ti–6Al–4V
TL;DR: In this article, the development of the microstructure of the Ti-6Al-4V alloy processed by selective laser melting (SLM) was studied by light optical microscopy.
Journal ArticleDOI
Residual stresses in selective laser sintering and selective laser melting
Peter Mercelis,Jean-Pierre Kruth +1 more
TL;DR: In this paper, a simple theoretical model is developed to predict residual stress distributions in selective laser sintering (SLS) and selective laser melting (SLM), aiming at a better understanding of this phenomenon.
Journal ArticleDOI
Selective laser melting of iron-based powder
Jean-Pierre Kruth,Ludo Froyen,J. Van Vaerenbergh,Peter Mercelis,Marleen Rombouts,Bert Lauwers +5 more
TL;DR: In this paper, a mixture of different types of particles (Fe, Ni, Cu and Fe3P) specially developed for selective laser sintering (SLS) is described.
Journal ArticleDOI
On the mechanical behaviour of titanium alloy TiAl6V4 manufactured by selective laser melting: Fatigue resistance and crack growth performance
Stefan Leuders,M. Thöne,Andre Riemer,Thomas Niendorf,Thomas Tröster,Hans Albert Richard,Hans Jürgen Maier +6 more
TL;DR: In this article, the microstructure-defect-property relationship under cyclic loading for a TiAl6V4 alloy processed by selective laser melting is investigated. And the results show that the micron sized pores mainly affect fatigue strength, while residual stresses have a strong impact on fatigue crack growth.
Journal ArticleDOI
Investigations on residual stresses and deformations in selective laser melting
TL;DR: The presented work contains particular approaches using the FEA for the simulation of transient physical effects within the additive layer manufacturing (ALM) process that focus on coupled thermo-mechanical models incorporating specific boundary conditions and temperature dependant material properties to identify the heat impact on residual stresses and deformations.