Abstract
A thin-wall structure composed of Ti-6Al-4V has been deposited using direct laser deposition (DLD) from blended Ti, Al, and V elemental powders. The microstructure and composition distribution along the build height direction were intensively investigated using optical microscopy, scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDS), and Vickers hardness testing. The microstructures of the as-deposited Ti-xAl-yV were studied using EDS to determine appropriate weight percentage for Al and V in the blended powders before mixing. The effects of laser power and laser transverse speed on the microstructure were investigated and optimized laser processing parameters were concluded.
Recommended Citation
L. Yan et al., "Direct Laser Deposition of Ti-6Al-4V from Elemental Powder Blends," Proceedings of the 26th Annual International Solid Freeform Fabrication Symposium (2015, Austin, TX), pp. 691 - 699, University of Texas at Austin, Aug 2015.
Meeting Name
26th Annual International Solid Freeform Fabrication Symposium -- An Additive Manufacturing Conference, SFF 2015 (2015: Aug. 10--12, Austin, TX)
Department(s)
Mechanical and Aerospace Engineering
Second Department
Materials Science and Engineering
Document Type
Article - Conference proceedings
Document Version
Final Version
File Type
text
Language(s)
English
Publication Date
12 Aug 2015
Comments
This work was conducted as part of NASA’s project through EPSCoR Grant #NNX13AM99A. The support from Boeing is also gratefully acknowledged.