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Directional cellular growth of Al-2 wt% Li bulk samples

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Abstract

Al-2 wt% Li alloy was prepared using metals of 99.99% high purity in the vacuum atmosphere. The bulk samples were directionally solidified upward with a constant growth rate, V, (∼8.30 μm/s) and different temperature gradients, G, (3.11–6.06 K/mm) and also with a constant G (6.06 K/mm) and different V (8.3–164.70 μm/s) in the directional solidification apparatus. The cellular spacings, λ, were measured from both transverse and longitudinal section of the specimens and expressed as functions of solidification processing parameters, G and V, by using a linear regression analysis. The effects of the G and V on λ, were investigated. The experimental results were compared with the current theoretical and numerical models, and similar previous experimental results.

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Authors and Affiliations

  1. Department of Science Education, Faculty of Education, Erciyes University, Kayseri, Turkey

    H. Kaya

  2. Department of Physics, Faculty of Arts and Sciences, Niğde University, Niğde, Turkey

    E. Çadırlı

  3. Department of Physics, Faculty of Arts and Sciences, Erciyes University, Kayseri, Turkey

    M. Gündüz

Authors
  1. H. Kaya
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  2. E. Çadırlı
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  3. M. Gündüz
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Correspondence to M. Gündüz.

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Kaya, H., Çadırlı, E. & Gündüz, M. Directional cellular growth of Al-2 wt% Li bulk samples. Appl. Phys. A 94, 155–165 (2009). https://doi.org/10.1007/s00339-008-4714-9

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  • DOI: https://doi.org/10.1007/s00339-008-4714-9

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