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Variables affecting the nature of the chill zone

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Abstract

Structures and substructures in the chill zone have been studied in Al-Cu alloys as a function of the following solidification conditions at the substrate chill: a) heat sink capacity; b) surface microprofile; c) nature of the liquid metal fluid flow as it makes substrate contact. The parameters taken in account both experimentally and analytically are: heat transfer coefficient of the metal/mold interface, surface rugosity of the mold walls, and the Reynolds number of the liquid metal fluid flow. The results obtained show definite correlations between the structural characteristics of the chill zone and the values of the studied parameters.

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Authors and Affiliations

  1. Aerospace Technical Center (CTA), Sao Jose dos Campos, Brasil

    M. Prates

  2. Solidification and Casting Division, Comision Nacional de Energía Atómica (CNEA), Buenos Aires, Argentina

    H. Biloni (Head)

Authors
  1. M. Prates
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  2. H. Biloni
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Prates, M., Biloni, H. Variables affecting the nature of the chill zone. Metall Trans 3, 1501–1510 (1972). https://doi.org/10.1007/BF02643039

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