… In this study, metal powders are supposed to have the same diameter, and these powders …
In the situation of multiple layers of powders, the upper layers of the powders are supposed to …

… mode. In addition, the collapse of the vapor cavity that is formed by the evaporation of the
metal … experimental observation of keyhole-mode laser melting in a laser powder-bed fusion …

… keyhole mode agrees very well with the experimental result. A metallic luster surface was
obtained in keyhole mode due … A and I are the laser absorptivity of metal powder and the laser …

… For example, melting in keyhole mode can potentially refine … to stable-keyhole to
unstable-keyhole mode during a scan … or powder motion and shading above the surface (Rubenchik …

… with the keyhole include: (I) keyhole initiation, (II) keyhole … due to the collapse of the keyhole
recoil zone, causing molten … the transient dynamics behind the keyhole mode in a multi-…

… liquidus temperature of the metal powder respectively and T is the temperature field of the
computational domain. Hence, the volume fraction of solid metal f s and liquid metal f l are α 1 …

… metal evaporation phenomenon, is introduced to simulate SLM of the TiC/AlSi10Mg powder
… to heat and melt the metal powder in the upper region of the powder layer and subsequently …

… As this study is focused on keyhole mode melting, a bigger computational domain along the
… [31] have performed an experiment to measure the absorptivity of metallic powders during …

… powder bed fusion (LPBF) has become a widely employed technique for additive manufacturing
of metallic … material waste because the un-used metal powders can be re-collected and …

… In LPBF process, when the melt pool transforms from conduction mode to keyhole mode,
which is beneficial for materials with low laser absorptivity, it is likely to generate a …