Modeling of hierarchical solidification microstructures in metal additive manufacturing: Challenges and opportunities

S Ghosh, J Zollinger, M Zaloznik, D Banerjee… - Additive …, 2023 - Elsevier
Metal-based additive manufacturing (AM) processes often produce parts with improved
properties compared to conventional manufacturing and metal working routes. However …

Digital twins for rapid in-situ qualification of part quality in laser powder bed fusion additive manufacturing

BD Bevans, A Carrington, A Riensche, A Tenequer… - Additive …, 2024 - Elsevier
This work concerns the laser powder bed fusion (LPBF) additive manufacturing process.
Currently, LPBF parts are inspected post-process using such techniques as X-ray computed …

ExaCA: A performance portable exascale cellular automata application for alloy solidification modeling

M Rolchigo, ST Reeve, B Stump, GL Knapp… - Computational Materials …, 2022 - Elsevier
Modeling the as-solidified grain structures that form during alloy processing is a critical
component in understanding process-property relationships, particularly for additive …

A Comprehensive Review and Future Perspectives of Simulation Approaches in Wire Arc Additive Manufacturing (WAAM)

Z CHEN, L Yuan, zengxi pan, H Zhu… - … Journal of Extreme …, 2024 - iopscience.iop.org
Wire arc additive manufacturing (WAAM) has emerged as a promising technique for
producing large-scale metal components, favoured by high deposition rates, flexibility and …

Calibrating uncertain parameters in melt pool simulations of additive manufacturing

GL Knapp, J Coleman, M Rolchigo, M Stoyanov… - Computational Materials …, 2023 - Elsevier
Melt pool scale numerical modeling of additive manufacturing (AM) processes can provide
predictive capabilities and theoretical insight into the process-property-structure …

GrainNN: A neighbor-aware long short-term memory network for predicting microstructure evolution during polycrystalline grain formation

Y Qin, S DeWitt, B Radhakrishnan, G Biros - Computational Materials …, 2023 - Elsevier
High fidelity simulations of grain formation in alloys are an indispensable tool for process-to-
mechanical-properties characterization. Such simulations, however, can be computationally …

Using post-processing heat treatments to elucidate precipitate strengthening of additively manufactured superalloy 718

S Taller, T Austin - Additive Manufacturing, 2022 - Elsevier
The poor machinability and extensive work hardening of Ni-based superalloys makes
additive manufacturing an attractive option for producing geometrically complex components …

Metal AM process-structure-property relational linkages using Gaussian process surrogates

RN Saunders, K Teferra, A Elwany… - Additive …, 2023 - Elsevier
In metal additive manufacturing (AM), with sufficient understanding of process-structure–
property (PSP) relational linkages, the control of build parameters can produce parts with …

Physics guided heat source for quantitative prediction of IN718 laser additive manufacturing processes

AA Amin, Y Li, Y Lu, X Xie, Z Gan, S Mojumder… - npj Computational …, 2024 - nature.com
Challenge 3 of the 2022 NIST additive manufacturing benchmark (AM Bench) experiments
asked modelers to submit predictions for solid cooling rate, liquid cooling rate, time above …

An extended version of cellular automata model for powder bed fusion to unravel the dependence of microstructure on printing areas for Inconel 625

Q Xie, X Yan, S Yin, X Li, M Liu, Y Wang… - Additive Manufacturing, 2023 - Elsevier
For the traditional cellular automata (CA) model applied for powder bed fusion additive
manufacturing (AM), nucleation is assumed to be independent of thermal gradients, and …