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Modelling the shape and thermal dynamics of Ni superalloy rings during spray forming Part 1: Shape modelling - Droplet deposition, splashing and redeposition

Mi, J.; Grant, P. S.

Authors

P. S. Grant



Abstract

A numerical model has been developed to simulate the dynamic shape evolution of Ni superalloy rings during spray forming. The model comprises: (1) a droplet primary deposition model, simulating droplet primary deposition at a deposition surface; (2) a droplet splashing model, simulating the droplet splashing/scattering behaviour; and (3) a droplet redeposition model, simulating the redeposition of the scattered droplets onto the deposition surface. The model has been validated against experiments of spray forming large diameter IN718 alloy rings, and for the first time, the effects of droplet splashing and redeposition on the dynamic shape evolution of spray forming IN718 alloy rings and the deposition yields have been investigated and quantified. The model serves as the basis for a thermal dynamic model that is described in Part 2 of this publication.

Citation

Mi, J., & Grant, P. S. (2008). Modelling the shape and thermal dynamics of Ni superalloy rings during spray forming Part 1: Shape modelling - Droplet deposition, splashing and redeposition. Acta Materialia, 56(7), 1588-1596. https://doi.org/10.1016/j.actamat.2007.12.021

Journal Article Type Article
Acceptance Date Dec 6, 2007
Online Publication Date Feb 8, 2008
Publication Date Apr 1, 2008
Deposit Date Nov 13, 2014
Journal Acta Materialia
Print ISSN 1359-6454
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 56
Issue 7
Pages 1588-1596
DOI https://doi.org/10.1016/j.actamat.2007.12.021
Keywords Electronic, Optical and Magnetic Materials; Polymers and Plastics; Metals and Alloys; Ceramics and Composites
Public URL https://hull-repository.worktribe.com/output/463496
Publisher URL https://www.sciencedirect.com/science/article/pii/S1359645407008427?via%3Dihub
Contract Date Nov 13, 2014