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Effects of Growth Rate on Eutectic Spacing, Microhardness, and Ultimate Tensile Strength in the Al–Cu–Ti Eutectic Alloy

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Abstract

In the present work, dependences of lamellar spacing (λ), microhardness (HV), and ultimate tensile strength (σUTS) on growth rate (V) were investigated in the Al–Cu–Ti (Al–33 wt % Cu–0.1 wt % Ti) eutectic alloy. For these purposes, the Al–Cu–Ti eutectic alloy was solidified at a constant temperature gradient of 6.45 K mm–1 with a wide range of growth rates, from 8.58 to 2038.65 µm/s. Then, the values of λ, HV, and σUTS were measured on the directionally solidified Al–Cu–Ti specimens. The dependences of λ, HV, and σUTS on V in the Al–Cu–Ti eutectic alloy were experimentally obtained using regression analysis. The results obtained in the present work were compared with the similar experimental results in the literature.

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Funding

This work was supported by Erciyes University Scientific Research Project Unit under Contract no. FDK-2013–4741. The researchers are grateful to Erciyes University Scientific Research Project Unit for their financial supports.

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Authors and Affiliations

  1. Department of Physics, Faculty of Science, Erciyes University, 38039, Kayseri, Turkey

    Ümit Bayram

  2. Department of Metallurgical and Materials Engineering, Faculty of Chemistry and Metallurgical Engineering, Yıldız Technical University, 34210, İstanbul, Turkey

    Necmettin Maraşlı

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Ümit Bayram, Necmettin Maraşlı Effects of Growth Rate on Eutectic Spacing, Microhardness, and Ultimate Tensile Strength in the Al–Cu–Ti Eutectic Alloy. Phys. Metals Metallogr. 121, 382–390 (2020). https://doi.org/10.1134/S0031918X2004016X

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