A multi-scale multi-physics approach to modelling of additive manufacturing in nickel-based superalloys

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)peer-review

Standard

A multi-scale multi-physics approach to modelling of additive manufacturing in nickel-based superalloys. / Panwisawas, Chinnapat; Sovani, Yogesh; Anderson, Magnus; Turner, Richard; Palumbo, Nunzio M.; Saunders, Benjamin C.; Choquet, Isabelle; Brooks, Jeffery; Basoalto, Hector.

Superalloys 2016: Proceedings of the 13th International Symposium on Superalloys. ed. / Mark Hardy. John Wiley & Sons, 2016. p. 1021-1030.

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)peer-review

Harvard

Panwisawas, C, Sovani, Y, Anderson, M, Turner, R, Palumbo, NM, Saunders, BC, Choquet, I, Brooks, J & Basoalto, H 2016, A multi-scale multi-physics approach to modelling of additive manufacturing in nickel-based superalloys. in M Hardy (ed.), Superalloys 2016: Proceedings of the 13th International Symposium on Superalloys. John Wiley & Sons, pp. 1021-1030, 13th International Symposium on Superalloys, SUPERALLOYS 2016, Seven Springs, United States, 11/09/16. <http://eu.wiley.com/WileyCDA/WileyTitle/productCd-1118996666,subjectCd-CEZ0.html>

APA

Panwisawas, C., Sovani, Y., Anderson, M., Turner, R., Palumbo, N. M., Saunders, B. C., Choquet, I., Brooks, J., & Basoalto, H. (2016). A multi-scale multi-physics approach to modelling of additive manufacturing in nickel-based superalloys. In M. Hardy (Ed.), Superalloys 2016: Proceedings of the 13th International Symposium on Superalloys (pp. 1021-1030). John Wiley & Sons. http://eu.wiley.com/WileyCDA/WileyTitle/productCd-1118996666,subjectCd-CEZ0.html

Vancouver

Panwisawas C, Sovani Y, Anderson M, Turner R, Palumbo NM, Saunders BC et al. A multi-scale multi-physics approach to modelling of additive manufacturing in nickel-based superalloys. In Hardy M, editor, Superalloys 2016: Proceedings of the 13th International Symposium on Superalloys. John Wiley & Sons. 2016. p. 1021-1030

Author

Panwisawas, Chinnapat ; Sovani, Yogesh ; Anderson, Magnus ; Turner, Richard ; Palumbo, Nunzio M. ; Saunders, Benjamin C. ; Choquet, Isabelle ; Brooks, Jeffery ; Basoalto, Hector. / A multi-scale multi-physics approach to modelling of additive manufacturing in nickel-based superalloys. Superalloys 2016: Proceedings of the 13th International Symposium on Superalloys. editor / Mark Hardy. John Wiley & Sons, 2016. pp. 1021-1030

Bibtex

@inbook{17e6d44016ea4a33abffb4483cc33e5b,
title = "A multi-scale multi-physics approach to modelling of additive manufacturing in nickel-based superalloys",
abstract = "A multi-scale, multi-physics modelling framework of selectivelaser melting (SLM) in the nickel-based superalloy IN718 ispresented. Representative powder-bed particle distribution issimulated using the measured size distribution from experiment.Thermal fluid dynamics calculations are then used to predictmelting behaviour, sub-surface morphology, and porositydevelopment during a single pass scanning of the SLM process.The results suggest that the pores and uneven surface structure areexacerbated by increasing powder layer thicknesses. Predictedporosity volume fraction is up to 12% of the single track when 5statistical powder distributions are simulated for each powderlayer thickness. Processing-induced microstructure is predicted bylinking cellular automatons – finite element calculations indicatefurther that the cooling rate is about 4400 oC/s and grain growthstrongly follows the thermal gradient giving rise to a columnargrain morphology if homogeneous nucleation is assumed.Random texture is likely for as-fabricated SLM single pass withapproximately 8 um and 6 um grain size for 20 um and 100 umpowder layer thickness fabrication. Use has been made of thecooling history to predict more detailed microstructure using a γ{"}precipitation model. With the short time scale of solidification andrapid cooling, it becomes less likely that γ{"} precipitation will beobserved in the condition investigated unless a prolonged hold attemperature is carried out. Future work on extension of theproposed multiscale modelling approach on microstructurepredictions in SLM to mechanical properties will be discussed.",
author = "Chinnapat Panwisawas and Yogesh Sovani and Magnus Anderson and Richard Turner and Palumbo, {Nunzio M.} and Saunders, {Benjamin C.} and Isabelle Choquet and Jeffery Brooks and Hector Basoalto",
year = "2016",
month = nov,
language = "English",
isbn = "978-1-118-99666-9",
pages = "1021--1030",
editor = "Mark Hardy",
booktitle = "Superalloys 2016",
publisher = "John Wiley & Sons",
note = "13th International Symposium on Superalloys, SUPERALLOYS 2016 ; Conference date: 11-09-2016 Through 15-09-2016",

}

RIS

TY - CHAP

T1 - A multi-scale multi-physics approach to modelling of additive manufacturing in nickel-based superalloys

AU - Panwisawas, Chinnapat

AU - Sovani, Yogesh

AU - Anderson, Magnus

AU - Turner, Richard

AU - Palumbo, Nunzio M.

AU - Saunders, Benjamin C.

AU - Choquet, Isabelle

AU - Brooks, Jeffery

AU - Basoalto, Hector

PY - 2016/11

Y1 - 2016/11

N2 - A multi-scale, multi-physics modelling framework of selectivelaser melting (SLM) in the nickel-based superalloy IN718 ispresented. Representative powder-bed particle distribution issimulated using the measured size distribution from experiment.Thermal fluid dynamics calculations are then used to predictmelting behaviour, sub-surface morphology, and porositydevelopment during a single pass scanning of the SLM process.The results suggest that the pores and uneven surface structure areexacerbated by increasing powder layer thicknesses. Predictedporosity volume fraction is up to 12% of the single track when 5statistical powder distributions are simulated for each powderlayer thickness. Processing-induced microstructure is predicted bylinking cellular automatons – finite element calculations indicatefurther that the cooling rate is about 4400 oC/s and grain growthstrongly follows the thermal gradient giving rise to a columnargrain morphology if homogeneous nucleation is assumed.Random texture is likely for as-fabricated SLM single pass withapproximately 8 um and 6 um grain size for 20 um and 100 umpowder layer thickness fabrication. Use has been made of thecooling history to predict more detailed microstructure using a γ"precipitation model. With the short time scale of solidification andrapid cooling, it becomes less likely that γ" precipitation will beobserved in the condition investigated unless a prolonged hold attemperature is carried out. Future work on extension of theproposed multiscale modelling approach on microstructurepredictions in SLM to mechanical properties will be discussed.

AB - A multi-scale, multi-physics modelling framework of selectivelaser melting (SLM) in the nickel-based superalloy IN718 ispresented. Representative powder-bed particle distribution issimulated using the measured size distribution from experiment.Thermal fluid dynamics calculations are then used to predictmelting behaviour, sub-surface morphology, and porositydevelopment during a single pass scanning of the SLM process.The results suggest that the pores and uneven surface structure areexacerbated by increasing powder layer thicknesses. Predictedporosity volume fraction is up to 12% of the single track when 5statistical powder distributions are simulated for each powderlayer thickness. Processing-induced microstructure is predicted bylinking cellular automatons – finite element calculations indicatefurther that the cooling rate is about 4400 oC/s and grain growthstrongly follows the thermal gradient giving rise to a columnargrain morphology if homogeneous nucleation is assumed.Random texture is likely for as-fabricated SLM single pass withapproximately 8 um and 6 um grain size for 20 um and 100 umpowder layer thickness fabrication. Use has been made of thecooling history to predict more detailed microstructure using a γ"precipitation model. With the short time scale of solidification andrapid cooling, it becomes less likely that γ" precipitation will beobserved in the condition investigated unless a prolonged hold attemperature is carried out. Future work on extension of theproposed multiscale modelling approach on microstructurepredictions in SLM to mechanical properties will be discussed.

M3 - Chapter (peer-reviewed)

SN - 978-1-118-99666-9

SP - 1021

EP - 1030

BT - Superalloys 2016

A2 - Hardy, Mark

PB - John Wiley & Sons

T2 - 13th International Symposium on Superalloys, SUPERALLOYS 2016

Y2 - 11 September 2016 through 15 September 2016

ER -