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Multiphysics modelling of the spray forming process

Mi, J.; Grant, P.S.; Fritsching, U.; Belkessam, O.; Garmendia, I.; Landaberea, A.

Authors

P.S. Grant

U. Fritsching

O. Belkessam

I. Garmendia

A. Landaberea



Abstract

An integrated, multiphysics numerical model has been developed through the joint efforts of the University of Oxford (UK), University of Bremen (Germany) and Inasmet (Spain) to simulate the spray forming process. The integrated model consisted of four sub-models: (1) an atomization model simulating the fragmentation of a continuous liquid metal stream into droplet spray during gas atomization; (2) a droplet spray model simulating the droplet spray mass and enthalpy evolution in the gas flow field prior to deposition; (3) a droplet deposition model simulating droplet deposition, splashing and re-deposition behavior and the resulting preform shape and heat flow; and (4) a porosity model simulating the porosity distribution inside a spray formed ring preform. The model has been validated against experiments of the spray forming of large diameter IN718 Ni superalloy rings. The modelled preform shape, surface temperature and final porosity distribution showed good agreement with experimental measurements.

Journal Article Type Article
Publication Date Mar 25, 2008
Journal Materials Science and Engineering A
Print ISSN 0921-5093
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 477
Issue 1-2
Pages 2-8
APA6 Citation Mi, J., Grant, P., Fritsching, U., Belkessam, O., Garmendia, I., & Landaberea, A. (2008). Multiphysics modelling of the spray forming process. Materials Science and Engineering: A, 477(1-2), (2-8). doi:10.1016/j.msea.2007.08.083. ISSN 0921-5093
DOI https://doi.org/10.1016/j.msea.2007.08.083
Keywords Multiphysics modelling; Melt atomization; Droplet deposition; Alloy solidification; Spray forming
Publisher URL https://www.sciencedirect.com/science/article/pii/S0921509307017297?via%3Dihub