Machine learning algorithms for defect detection in metal laser-based additive manufacturing: A review

Y Fu, ARJ Downey, L Yuan, T Zhang, A Pratt… - Journal of Manufacturing …, 2022 - Elsevier
Laser-based additive manufacturing (LBAM), a series of additive manufacturing
technologies, has unrivaled advantages due to its design freedom to manufacture complex …

[HTML][HTML] Solute trapping and non-equilibrium microstructure during rapid solidification of additive manufacturing

N Ren, J Li, R Zhang, C Panwisawas, M Xia… - Nature …, 2023 - nature.com
Solute transport during rapid and repeated thermal cycle in additive manufacturing (AM)
leading to non-equilibrium, non-uniform microstructure remains to be studied. Here, a fully …

Quantification of Interdependent Dynamics during Laser Additive Manufacturing Using X‐Ray Imaging Informed Multi‐Physics and Multiphase Simulation

CLA Leung, D Luczyniec, E Guo, S Marussi… - Advanced …, 2022 - Wiley Online Library
Laser powder bed fusion (LPBF) can produce high‐value metallic components for many
industries; however, its adoption for safety‐critical applications is hampered by the presence …

Role of alloy composition on micro-cracking mechanisms in additively manufactured Ni-based superalloys

A Chakraborty, W Muhammad, JP Masse… - Acta Materialia, 2023 - Elsevier
Inherent micro-cracking mechanisms in two contrasting high-gamma-prime (high-γ') Ni-
based superalloys processed by laser powder bed fusion (LPBF) were investigated. RENÉ …

Selective laser melting of IN738 superalloy with a low Mn+ Si content: effect of energy input on characteristics of molten pool, metallurgical defects, microstructures …

L Zhang, Y Li, S Zhang, Q Zhang - Materials Science and Engineering: A, 2021 - Elsevier
IN738 superalloy with excellent high-temperature performance is of huge interest for hot-end
component applications in aerospace, but its additive manufacturing via selective laser …

[HTML][HTML] Equiaxed grain formation by intrinsic heterogeneous nucleation via rapid heating and cooling in additive manufacturing of aluminum-silicon hypoeutectic alloy

M Okugawa, Y Ohigashi, Y Furishiro, Y Koizumi… - Journal of Alloys and …, 2022 - Elsevier
The high strength of Al-Si hypoeutectic alloys additively manufactured by powder-bed fusion
is of great scientific interest. To date, the mechanism of grain refinement near the fusion line …

Influence of geometry on columnar to equiaxed transition during electron beam powder bed fusion of IN718

N Raghavan, BC Stump, P Fernandez-Zelaia… - Additive …, 2021 - Elsevier
Correlation between spot-melt scan parameters (linear spot-density aka areal energy
density), build geometry, and solidification microstructure evolution (columnar vs equiaxed) …

Study of melt pool geometry and solidification microstructure during laser surface melting of Inconel 625 alloy

JK Chaurasia, AN Jinoop, P Parthasarathy, CP Paul… - Optik, 2021 - Elsevier
The present study aims to comprehend thermo-fluid conditions during laser surface melting
(LSM) of Inconel 625 (IN625) alloy using experimental and numerical modelling …

Micro-cracking mechanism of RENÉ 108 thin-wall components built by laser powder bed fusion additive manufacturing

A Chakraborty, R Tangestani, W Muhammad… - Materials Today …, 2022 - Elsevier
This study investigates the effect of wall thickness on the micro-cracking mechanism in thin-
wall components produced by laser powder bed fusion (LPBF) using a hard-to-weld nickel …

Validation and application of cellular automaton model for microstructure evolution in IN718 during directed energy deposition

L Yuan, S Ju, S Huang, I Spinelli, J Yang… - Computational Materials …, 2023 - Elsevier
Abstract In Directed Energy Deposition (DED), the complex and nonuniform thermal history
during the laser heating and cooling cycles determines the as-built microstructures and …