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Bending Failure of “Thick” Co-Based-Alloy Amorphous Wires

  • APPLIED PROBLEMS OF STRENGTH AND PLASTICITY
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Russian Metallurgy (Metally) Aims and scope

Abstract—The bending-deformation behavior of rapidly quenched Co69Fe4Cr4Si12B11 alloy wires 0.1–1 mm in diameter, which are fabricated by the Ulitovskii–Taylor method, are studied. A correlation between the failure mechanism of a wire and its diameter and bending loading conditions is shown. It is found that wires up to 0.2 mm in diameter exhibit no bending failure. The wedge-type fracture is observed for wires 0.2–0.35 mm in diameter; wires more that 0.35 mm in diameter exhibit steplike fracture. The wedge-type fracture, a dense regular shear-band network, and vein- and corallike fracture are shown to correspond to the 100% amorphous state of wires. This combination of signs is observed for wires up to 0.4 mm in diameter.

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ACKNOWLEDGMENTS

This study was performed in terms of state task no. 007-00129-18-00.

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Authors and Affiliations

  1. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334, Moscow, Russia

    V. V. Molokanov, T. R. Chueva, N. V. Umnova, P. P. Umnov & A. V. Krutilin

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  1. V. V. Molokanov
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  2. T. R. Chueva
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  3. N. V. Umnova
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  4. P. P. Umnov
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  5. A. V. Krutilin
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Correspondence to V. V. Molokanov.

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Translated by N. Kolchugina

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Molokanov, V.V., Chueva, T.R., Umnova, N.V. et al. Bending Failure of “Thick” Co-Based-Alloy Amorphous Wires. Russ. Metall. 2019, 409–414 (2019). https://doi.org/10.1134/S0036029519040244

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  • DOI: https://doi.org/10.1134/S0036029519040244

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