Microstructures and Mechanical Properties of 584 mm 7055 Alloy Billet by Direct Chill Casting Under Annular Electromagnetic Stirring Coupled with Intercooling
Combined with annular electromagnetic stirring and intercooling, a uniform direct chill (UDC) casting was proposed and used to produce 7075 aluminum alloy billets of Φ584 mm. In this paper, the experiments were employed to investigate the solidification behavior of 7055 alloy during UDC casting process. The effect of the technology on the microstructures of the billets and mechanical property was studied. The results illustrated that the UDC could refine the microstructures of the billets of 7055 alloy and reduce macrosegregation. The billet prepared had better mechanical property compared to normal DC casting.
KeywordsDirect chill casting Electromagnetic stirring 7055 alloy Intercooling
This work was financially supported by the International Science and Technology Cooperation Program of China (No. 2015DFA51230).
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