Accession Number : ADA103567


Title :   Rapid Cycle Casting of Steel


Descriptive Note : Final rept. 1 Jul 1977-31 Aug 1980


Corporate Author : DREXEL UNIV PHILADELPHIA PA DEPT OF MATERIALS ENGINEERING


Personal Author(s) : Apelian, Diran ; Langford, George


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a103567.pdf


Report Date : Jul 1981


Pagination or Media Count : 533


Abstract : A rapid-cycle casting process for steel vis diffusion solidification (SD) has been developed. Solidification takes place by carbon redistribution between iron-saturated high-carbon liquid iron and low carbon pre-existing solid iron in a refractory mold. Since no heat need be rejected to the surroundings during this process, the solidification time is shorter and the economic scaling law is less dependent on the size of the casting than in conventional casting processes. The metallurgical and processing aspects of SD casting were addressed and the necessary parameters have been developed to design a rapid cycle casting machine. These process parameters in addition to the metallurgical quality variables have been included in an economic feasibility analysis of the SD process.


Descriptors :   *CARBON STEELS , *STEEL , CASTINGS , DIES , DIFFUSION , FURNACES , HEAT TREATMENT , INVESTMENT CASTING , MASS TRANSFER , MATHEMATICAL MODELS , MECHANICAL PROPERTIES , PHOTOMICROGRAPHY , REACTION KINETICS , SOLIDIFICATION , TENSILE STRENGTH


Subject Categories : Metallurgy and Metallography
      Fabrication Metallurgy


Distribution Statement : APPROVED FOR PUBLIC RELEASE