Modelling of the microstructural evolution of Ti6Al4V parts produced by selective laser melting during heat treatment

David De Baere; Emilie Hørdum Valente; Sankhya Mohanty; Jesper Henry Hattel

Modelling of the microstructural evolution of Ti6Al4V parts produced by selective laser melting during heat treatment

David De Baere, Emilie Hørdum Valente, Sankhya Mohanty, Jesper Henry Hattel

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

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Abstract

The microstructure of parts produced by sective laser melting of Ti-6Al-4V is typically martensite in elongated prior β grains, which leads to anisotropic mechanical properties. A heat treatment can reduce this anisotropy by making these grains more equiaxed. In this work, simulations are performed wherein the evolution of the microstructure during a heat treatment is modelled using a cellular automata method. The results obtained from this simulation are compared to experimentally obtained micrographs. The simulated microstructure shows a similar evolution of the prior β grains from columnar to equiaxed, although the average diameter of the grains is slightly smaller in the simulations.

Original language	English
Title of host publication	Proceedings of the 18th International Conference of the european Society for Precision Engineering and Nanotechnology
Editors	D. Billington , R. K. Leach, D. Phillips , O. Riemer , E. Savio
Publisher	The European Society for Precision Engineering and Nanotechnology
Publication date	2018
Pages	249-250
ISBN (Electronic)	9780995775121
Publication status	Published - 2018
Event	18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18) - Venice, Italy Duration: 4 Jun 2018 → 8 Jun 2018

Conference

Conference	18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18)
Country	Italy
City	Venice
Period	04/06/2018 → 08/06/2018

Keywords

Microstructural modelling
Cellular Automata
Ti-6Al-4V
Selective laser melting
Heat Treatment

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De Baere, D., Valente, E. H., Mohanty, S., & Hattel, J. H. (2018). Modelling of the microstructural evolution of Ti6Al4V parts produced by selective laser melting during heat treatment. In D. Billington , R. K. Leach, D. Phillips , O. Riemer , & E. Savio (Eds.), Proceedings of the 18th International Conference of the european Society for Precision Engineering and Nanotechnology (pp. 249-250 ). The European Society for Precision Engineering and Nanotechnology.

De Baere, David ; Valente, Emilie Hørdum ; Mohanty, Sankhya ; Hattel, Jesper Henry. / Modelling of the microstructural evolution of Ti6Al4V parts produced by selective laser melting during heat treatment. Proceedings of the 18th International Conference of the european Society for Precision Engineering and Nanotechnology . editor / D. Billington ; R. K. Leach ; D. Phillips ; O. Riemer ; E. Savio. The European Society for Precision Engineering and Nanotechnology, 2018. pp. 249-250

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title = "Modelling of the microstructural evolution of Ti6Al4V parts produced by selective laser melting during heat treatment",

abstract = "The microstructure of parts produced by sective laser melting of Ti-6Al-4V is typically martensite in elongated prior β grains, which leads to anisotropic mechanical properties. A heat treatment can reduce this anisotropy by making these grains more equiaxed. In this work, simulations are performed wherein the evolution of the microstructure during a heat treatment is modelled using a cellular automata method. The results obtained from this simulation are compared to experimentally obtained micrographs. The simulated microstructure shows a similar evolution of the prior β grains from columnar to equiaxed, although the average diameter of the grains is slightly smaller in the simulations.",

keywords = "Microstructural modelling, Cellular Automata, Ti-6Al-4V, Selective laser melting, Heat Treatment",

author = "{De Baere}, David and Valente, {Emilie H{\o}rdum} and Sankhya Mohanty and Hattel, {Jesper Henry}",

year = "2018",

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editor = "{Billington }, {D. } and { Leach}, {R. K.} and { Phillips }, D. and {Riemer }, {O. } and Savio, {E. }",

booktitle = "Proceedings of the 18th International Conference of the european Society for Precision Engineering and Nanotechnology",

publisher = "The European Society for Precision Engineering and Nanotechnology",

note = "18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18) ; Conference date: 04-06-2018 Through 08-06-2018",

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De Baere, D , Valente, EH , Mohanty, S & Hattel, JH 2018, Modelling of the microstructural evolution of Ti6Al4V parts produced by selective laser melting during heat treatment. in D Billington , RK Leach, D Phillips , O Riemer & E Savio (eds), Proceedings of the 18th International Conference of the european Society for Precision Engineering and Nanotechnology . The European Society for Precision Engineering and Nanotechnology, pp. 249-250 , 18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18), Venice, Italy, 04/06/2018.

Modelling of the microstructural evolution of Ti6Al4V parts produced by selective laser melting during heat treatment. / De Baere, David ; Valente, Emilie Hørdum ; Mohanty, Sankhya ; Hattel, Jesper Henry.

Proceedings of the 18th International Conference of the european Society for Precision Engineering and Nanotechnology . ed. / D. Billington ; R. K. Leach; D. Phillips ; O. Riemer ; E. Savio. The European Society for Precision Engineering and Nanotechnology, 2018. p. 249-250 .

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

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T1 - Modelling of the microstructural evolution of Ti6Al4V parts produced by selective laser melting during heat treatment

AU - De Baere, David

AU - Valente, Emilie Hørdum

AU - Mohanty, Sankhya

AU - Hattel, Jesper Henry

PY - 2018

Y1 - 2018

N2 - The microstructure of parts produced by sective laser melting of Ti-6Al-4V is typically martensite in elongated prior β grains, which leads to anisotropic mechanical properties. A heat treatment can reduce this anisotropy by making these grains more equiaxed. In this work, simulations are performed wherein the evolution of the microstructure during a heat treatment is modelled using a cellular automata method. The results obtained from this simulation are compared to experimentally obtained micrographs. The simulated microstructure shows a similar evolution of the prior β grains from columnar to equiaxed, although the average diameter of the grains is slightly smaller in the simulations.

AB - The microstructure of parts produced by sective laser melting of Ti-6Al-4V is typically martensite in elongated prior β grains, which leads to anisotropic mechanical properties. A heat treatment can reduce this anisotropy by making these grains more equiaxed. In this work, simulations are performed wherein the evolution of the microstructure during a heat treatment is modelled using a cellular automata method. The results obtained from this simulation are compared to experimentally obtained micrographs. The simulated microstructure shows a similar evolution of the prior β grains from columnar to equiaxed, although the average diameter of the grains is slightly smaller in the simulations.

KW - Microstructural modelling

KW - Cellular Automata

KW - Ti-6Al-4V

KW - Selective laser melting

KW - Heat Treatment

M3 - Conference abstract in proceedings

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EP - 250

BT - Proceedings of the 18th International Conference of the european Society for Precision Engineering and Nanotechnology

A2 - Billington , D.

A2 - Leach, R. K.

A2 - Phillips , D.

A2 - Riemer , O.

A2 - Savio, E.

PB - The European Society for Precision Engineering and Nanotechnology

T2 - 18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18)

Y2 - 4 June 2018 through 8 June 2018

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De Baere D , Valente EH , Mohanty S , Hattel JH. Modelling of the microstructural evolution of Ti6Al4V parts produced by selective laser melting during heat treatment. In Billington D, Leach RK, Phillips D, Riemer O, Savio E, editors, Proceedings of the 18th International Conference of the european Society for Precision Engineering and Nanotechnology . The European Society for Precision Engineering and Nanotechnology. 2018. p. 249-250