ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2026
Quantifying Additive Manufacturing Vapor Plumes Using Laser-Induced Breakdown Spectroscopy, Synchrotron X-Ray Radiography and Simulations.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Mixing-Driven Defects and Composition Evolution in Multi-Material Metal Additive Manufacturing.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
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Authors and funding
9 authors.
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Abstract
Understanding vaporization phenomena in laser powder bed fusion (LPBF) additive manufacturing has proven challenging; the links between laser-induced metal vaporization, rate of elemental loss, and composition irregularities remain unclear. Here, the vapor plume composition and preferential vaporization effect is quantified during LPBF, using in situ 1 kHz laser-induced breakdown spectroscopy with correlative X-ray synchrotron radiography, multi-physics simulations, and energy dispersive X-ray spectroscopy. It is demonstrated that vaporization increases under keyhole mode, and preferential vaporization causes elemental loss rates of Ni ≈ Fe > Cr > Mo in a Ni-based superalloy, IN625. It is found that the melt pool temperature (T ≈2300 K) can be approximated by cross-referencing vapor pressures, and Raoult's law inadequately describes preferential vaporization. Three simulation approaches are compared to show that introducing temperature-dependent thermophysical properties improves model predictions. The insights into the vapor dynamics of laser-processed IN625 enhance the understanding of compositional changes and elucidate methods to optimize simulations.
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