Accession Number : ADA537709


Title :   Advanced Cast Aluminum Alloys


Descriptive Note : Conference paper


Corporate Author : ALABAMA UNIV IN BIRMINGHAM


Personal Author(s) : Druschitz, Alan P ; Griffin, John


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a537709.pdf


Report Date : Feb 2009


Pagination or Media Count : 9


Abstract : A recent advancement in cast aluminum alloys has demonstrated that complex shapes can be cast from a microalloyed Al-Cu alloy in dry sand molds with chills and that these castings can be heat treated to produce mechanical and physical properties nearly comparable to wrought 2519 aluminum alloy. Given this initial level of success, further research has been focused on improving this microalloyed Al-Cu alloy so that the mechanical properties consistently meet or exceed those of wrought 2519 alloy. Further, new research has been initiated on ultra-high strength, microalloyed Al-Zn-Mg-Cu alloys with the goal of producing complex castings with properties significantly better than wrought 2519 aluminum alloy and equivalent to or better than the best 7000 series wrought alloys. The development of the appropriate chemistries, casting practices and heat treatments are described in this paper.


Descriptors :   *CASTING , *ALUMINUM ALLOYS , TENSILE STRENGTH , MICROSTRUCTURE , SYMPOSIA , PHYSICAL PROPERTIES , GRAIN SIZE , COOLING , POROSITY , HEAT TREATMENT , IRON , HIGH STRENGTH , COPPER , TABLES(DATA) , ZIRCONIUM , CHROMIUM , YIELD STRENGTH , ELONGATION , SILVER , VANADIUM , CASTINGS , MANGANESE , TEMPERATURE , MECHANICAL PROPERTIES


Subject Categories : Metallurgy and Metallography
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE