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.

Meeting Name

26th Annual International Solid Freeform Fabrication Symposium -- An Additive Manufacturing Conference, SFF 2015 (2015: Aug. 10--12, Austin, TX)


Mechanical and Aerospace Engineering

Second Department

Materials Science and Engineering


This work was conducted as part of NASA’s project through EPSCoR Grant #NNX13AM99A. The support from Boeing is also gratefully acknowledged.

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type




Publication Date

12 Aug 2015

Included in

Manufacturing Commons