Porosity formation in laser welded Ti-6Al-4V Alloy: modelling and validation

Chinnapat Panwisawas; Bama Perumal; Yogesh Sovani; Richard P. Turner; Mark Ward; Jeffery W. Brooks; Hector C. Basoalto

doi:10.1002/9781119296126.ch317

Porosity formation in laser welded Ti-6Al-4V Alloy: modelling and validation

Chinnapat Panwisawas, Bama Perumal, Yogesh Sovani, Richard P. Turner, Mark Ward, Jeffery W. Brooks, Hector C. Basoalto

Metallurgy and Materials

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

The presence of porosity inherited from a fusion welding operation degrades the mechanical properties of components during performance such as fatigue life. In this study, a physic s-based model including heat transfer, fluid flow, interfacial processes and microstructure prediction via cellular automata has been developed and used to simulate porosity formation during laser welding of Ti-6Al -4V titanium alloy. The model results are compared with: measurements of porosity from welded samples using X-ray tomography ; optical images; texture measurement via EBSD and neutron diffraction. These are used to provide a better understanding of the relationship between process parameters, component microstructure and weld integrity.

Original language	English
Title of host publication	Proceedings of the 13th World Conference on Titanium
Editors	Vasisht Venkatesh, Adam L. Pilchak, John E. Allison, Sreeramamurthy Ankem, Rodney Boyer, Julie Christodoulou, Hamish L. Fraser, M. Ashraf Imam, Yoji Kosaka, Henry J. Rack, Amit Chatterjee, Andy Woodfield
Publisher	John Wiley & Sons
Pages	1897-1900
ISBN (Electronic)	9781119296126
ISBN (Print)	9781119293668
DOIs	https://doi.org/10.1002/9781119296126.ch317
Publication status	Published - 6 May 2016

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10.1002/9781119296126.ch317

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Panwisawas, C., Perumal, B., Sovani, Y., Turner, R. P., Ward, M., Brooks, J. W., & Basoalto, H. C. (2016). Porosity formation in laser welded Ti-6Al-4V Alloy: modelling and validation. In V. Venkatesh, A. L. Pilchak, J. E. Allison, S. Ankem, R. Boyer, J. Christodoulou, H. L. Fraser, M. A. Imam, Y. Kosaka, H. J. Rack, A. Chatterjee, & A. Woodfield (Eds.), Proceedings of the 13th World Conference on Titanium (pp. 1897-1900). John Wiley & Sons. https://doi.org/10.1002/9781119296126.ch317

Panwisawas, Chinnapat ; Perumal, Bama ; Sovani, Yogesh et al. / Porosity formation in laser welded Ti-6Al-4V Alloy: modelling and validation. Proceedings of the 13th World Conference on Titanium. editor / Vasisht Venkatesh ; Adam L. Pilchak ; John E. Allison ; Sreeramamurthy Ankem ; Rodney Boyer ; Julie Christodoulou ; Hamish L. Fraser ; M. Ashraf Imam ; Yoji Kosaka ; Henry J. Rack ; Amit Chatterjee ; Andy Woodfield. John Wiley & Sons, 2016. pp. 1897-1900

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title = "Porosity formation in laser welded Ti-6Al-4V Alloy: modelling and validation",

abstract = "The presence of porosity inherited from a fusion welding operation degrades the mechanical properties of components during performance such as fatigue life. In this study, a physic s-based model including heat transfer, fluid flow, interfacial processes and microstructure prediction via cellular automata has been developed and used to simulate porosity formation during laser welding of Ti-6Al -4V titanium alloy. The model results are compared with: measurements of porosity from welded samples using X-ray tomography ; optical images; texture measurement via EBSD and neutron diffraction. These are used to provide a better understanding of the relationship between process parameters, component microstructure and weld integrity.",

author = "Chinnapat Panwisawas and Bama Perumal and Yogesh Sovani and Turner, {Richard P.} and Mark Ward and Brooks, {Jeffery W.} and Basoalto, {Hector C.}",

year = "2016",

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doi = "10.1002/9781119296126.ch317",

language = "English",

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pages = "1897--1900",

editor = "Vasisht Venkatesh and Pilchak, {Adam L.} and Allison, {John E.} and Sreeramamurthy Ankem and Rodney Boyer and Julie Christodoulou and Fraser, {Hamish L.} and Imam, {M. Ashraf} and Yoji Kosaka and Rack, {Henry J.} and Amit Chatterjee and Andy Woodfield",

booktitle = "Proceedings of the 13th World Conference on Titanium",

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Panwisawas, C, Perumal, B, Sovani, Y, Turner, RP , Ward, M, Brooks, JW & Basoalto, HC 2016, Porosity formation in laser welded Ti-6Al-4V Alloy: modelling and validation. in V Venkatesh, AL Pilchak, JE Allison, S Ankem, R Boyer, J Christodoulou, HL Fraser, MA Imam, Y Kosaka, HJ Rack, A Chatterjee & A Woodfield (eds), Proceedings of the 13th World Conference on Titanium. John Wiley & Sons, pp. 1897-1900. https://doi.org/10.1002/9781119296126.ch317

Porosity formation in laser welded Ti-6Al-4V Alloy: modelling and validation. / Panwisawas, Chinnapat; Perumal, Bama; Sovani, Yogesh et al.
Proceedings of the 13th World Conference on Titanium. ed. / Vasisht Venkatesh; Adam L. Pilchak; John E. Allison; Sreeramamurthy Ankem; Rodney Boyer; Julie Christodoulou; Hamish L. Fraser; M. Ashraf Imam; Yoji Kosaka; Henry J. Rack; Amit Chatterjee; Andy Woodfield. John Wiley & Sons, 2016. p. 1897-1900.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

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AU - Panwisawas, Chinnapat

AU - Perumal, Bama

AU - Sovani, Yogesh

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AU - Ward, Mark

AU - Brooks, Jeffery W.

AU - Basoalto, Hector C.

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N2 - The presence of porosity inherited from a fusion welding operation degrades the mechanical properties of components during performance such as fatigue life. In this study, a physic s-based model including heat transfer, fluid flow, interfacial processes and microstructure prediction via cellular automata has been developed and used to simulate porosity formation during laser welding of Ti-6Al -4V titanium alloy. The model results are compared with: measurements of porosity from welded samples using X-ray tomography ; optical images; texture measurement via EBSD and neutron diffraction. These are used to provide a better understanding of the relationship between process parameters, component microstructure and weld integrity.

AB - The presence of porosity inherited from a fusion welding operation degrades the mechanical properties of components during performance such as fatigue life. In this study, a physic s-based model including heat transfer, fluid flow, interfacial processes and microstructure prediction via cellular automata has been developed and used to simulate porosity formation during laser welding of Ti-6Al -4V titanium alloy. The model results are compared with: measurements of porosity from welded samples using X-ray tomography ; optical images; texture measurement via EBSD and neutron diffraction. These are used to provide a better understanding of the relationship between process parameters, component microstructure and weld integrity.

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DO - 10.1002/9781119296126.ch317

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A2 - Christodoulou, Julie

A2 - Fraser, Hamish L.

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PB - John Wiley & Sons

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Panwisawas C, Perumal B, Sovani Y, Turner RP , Ward M, Brooks JW et al. Porosity formation in laser welded Ti-6Al-4V Alloy: modelling and validation. In Venkatesh V, Pilchak AL, Allison JE, Ankem S, Boyer R, Christodoulou J, Fraser HL, Imam MA, Kosaka Y, Rack HJ, Chatterjee A, Woodfield A, editors, Proceedings of the 13th World Conference on Titanium. John Wiley & Sons. 2016. p. 1897-1900 doi: 10.1002/9781119296126.ch317

Porosity formation in laser welded Ti-6Al-4V Alloy: modelling and validation

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