Journal of Material Sciences & Engineering

Rebecca A Sweny

Publications

• Research Article
  Development and Evaluation of an Advanced Aluminum Alloy for Additive Manufacturing
  Author(s): Rebecca A Sweny, Jay F Tressler and Richard P MartukanitzRebecca A Sweny, Jay F Tressler and Richard P Martukanitz
  
  Experiments were conducted on several alloys representing the Al-Cu-Ag-Mg system to determine the applicability of using these alloys for AM. Alloys were formulated and prepared utilizing a powder blending technique using a pre-alloyed master alloy powder containing Al, Mg, Ti, and Zr with elemental powders of pure Cu and Ag. These powder were processed using laser-based directed energy deposition to produce specimens that were treated to represent the post-process aged only and post-process solution heat treated and aged conditions. Microhardness and microstructural characterization was then conducted. Results of this investigation showed that an aluminum alloy containing between 6 and 8% Cu and 1 to 4% Ag, while also containing 0.3% Mg, Ti, and Zr, displayed excellent response to precipitation strengthening for both post-process treatments. Alloys that were completely solutionized a.. Read More»
  

  Abstract PDF