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

Research output: Chapter in Book/Report/Conference proceedingChapter


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 languageEnglish
Title of host publicationProceedings of the 13th World Conference on Titanium
EditorsVasisht 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
PublisherJohn Wiley & Sons
ISBN (Electronic)9781119296126
ISBN (Print)9781119293668
Publication statusPublished - 6 May 2016


Dive into the research topics of 'Porosity formation in laser welded Ti-6Al-4V Alloy: modelling and validation'. Together they form a unique fingerprint.

Cite this