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Selected Works of Haijun Gong
Contribution to Book
Defect Morphology in Ti-6Al-4V Parts Fabricated by Selective Laser Melting and Electron Beam Melting
Proceedings of the Solid Freeform Fabrication Symposium (2013)
  • Haijun Gong, Georgia Southern University
  • Khalid Rafi, Nanyang Technological University, Singapore
  • N. V. Karthik, University of Louisville
  • Thomas Starr, University of Louisville
  • Brent Stucker, University of Louisville
Link
Abstract
In order to investigate the morphology of defects present in Selective Laser Melting (SLM) and Electron Beam Melting (EBM) processes, Ti-6Al-4V specimens were fabricated with varying porosity using non-optimum processing parameters. Defective specimens were sectioned and polished for microscopy. Image processing was adopted for statistically analyzing the characteristics of defects, such as distribution of defect area and dimensional proportion of each defect. It is found that defect morphology is influenced by process parameters as a result of a variation in the melt pool. Image processing of a cross-section could be a feasible way for calculating porosity of specimens.
Keywords
  • Defect morphology,
  • Ti-6Al-4V parts,
  • Fabricated,
  • Selective laser melting,
  • Electron beam melting
Disciplines
Publication Date
August 16, 2013
Citation Information
Haijun Gong, Khalid Rafi, N. V. Karthik, Thomas Starr, et al.. "Defect Morphology in Ti-6Al-4V Parts Fabricated by Selective Laser Melting and Electron Beam Melting" Austin, TXProceedings of the Solid Freeform Fabrication Symposium (2013) p. 440 - 453
Available at: http://works.bepress.com/haijun-gong/20/