Porosity formation in laser welded ti-6al-4v alloy: modelling and validation

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

University of Birmingham

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

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 physicsbased 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	Wiley
Chapter	317
Pages	1897-1900
Number of pages	4
ISBN (Electronic)	9781119296126
ISBN (Print)	9781119293668
DOIs	https://doi.org/10.1002/9781119296126.ch317
Publication status	Published - 2 May 2016
Externally published	Yes
Event	13th World Conference on Titanium - San Diego, United States Duration: 16 Aug 2015 → 20 Aug 2015 Conference number: 13th https://www.tms.org/meetings/2015/Ti2015/home.aspx#.XZWi4vlKiUk

Conference

Conference	13th World Conference on Titanium
Country/Territory	United States
City	San Diego
Period	16/08/15 → 20/08/15
Internet address	https://www.tms.org/meetings/2015/Ti2015/home.aspx#.XZWi4vlKiUk

Keywords

Processing-induced porosity
Laser welding
Titanium alloys
Keyhole modelling

Access to Document

10.1002/9781119296126.ch317

Cite this

Panwisawas, C., Perumal, B., Sovani, Y., Turner, R. P., Ward, R. 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). Wiley. 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. Wiley, 2016. p. 1897-1900.

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

Panwisawas, C, Perumal, B, Sovani, Y, Turner, RP, Ward, RM, 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. Wiley, pp. 1897-1900, 13th World Conference on Titanium, San Diego, California, United States, 16/08/15. https://doi.org/10.1002/9781119296126.ch317

Panwisawas C, Perumal B, Sovani Y, Turner RP, Ward RM, 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. Wiley. 2016. p. 1897-1900 doi: 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. Wiley, 2016. pp. 1897-1900

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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 physicsbased 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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AU - Ward, R. Mark

AU - Brooks, Jeffery W.

AU - Basoalto, Hector C

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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 physicsbased 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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A2 - Fraser, Hamish L.

A2 - Imam, M. Ashraf

A2 - Kosaka, Yoji

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T2 - 13th World Conference on Titanium

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ER -

Porosity formation in laser welded ti-6al-4v alloy: modelling and validation

Abstract

Conference

Keywords

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