Porosity formation and gas bubble retention in laser metal deposition
By G. Ng, A. Jarfors, G. Bi, Hongyu Y Zheng. 2009
232 citations recorded by the source corpus.
Subfields: Computational Mechanics, Mechanical Engineering, Mechanics of Materials
View Paper: https://www.semanticscholar.org/paper/d534651314d44f4d246fb268a824b175f04f815e
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In Computational Mechanics
In Mechanical Engineering
- Ian Ashcroft
- Richard J. M. Hague
- M. Simonelli
- Hongmei Zhang
- S. Tammas-Williams
- Iain Todd
- P. Prangnell
- R. Hebert
In Mechanics of Materials
Citations in the corpus
- Selective laser melting additive manufacturing of pure tungsten: Role of volumetric energy density on densification, microstructure and mechanical properties (2019, background): “The intense Marangoni effects can increase the probability of gas migration towards the molten pool, which in turn results in pore formation in the solidified molten pool [34].”
- Viewpoint: metallurgical aspects of powder bed metal additive manufacturing (2016, background): “Without direct experimental proof, it can be argued that these bubbles could originate from pores in the starting powder particles that are filled with inert gases in case of gasatomized powders [46].”
- XCT analysis of the influence of melt strategies on defect population in Ti?6Al?4V components manufactured by Selective Electron Beam Melting (2015, background): “Whether or not a gas bubble can escape before becoming trapped during solidification, by breaking the surface of a moving melt pool, depends on the pool shape as well as the convective and buoyancy forces that control their motion [35].”
- Metallurgy of high-silicon steel parts produced using selective laser melting (2016, background): “Furthermore, the dynamics of the Marangoni flow increases with laser energy input, thus increasing the probability of any gas (either newly formed or originally trapped within the highly packed powder particles) being dragged towards the bottom of the melt-pool [20].”
- Additive manufacturing of Ti6Al4V alloy: A review (2019, unknown): “Therefore, dense metal powders are preferred to sponge type powders as feedstock materials in AM processes because the hollow structure in sponge powders easily introduces gas pores [96,97].”