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Fabrication of Cu–Zr–Ag–Al glassy alloy samples with a diameter of 20 mm by water quenching

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Abstract

The melting behavior, thermal stability, and glass-forming ability (GFA) of Cu84−xZrxAg8Al8 (x = 42 to 50) glassy alloys were investigated. The alloy with x = 46 exhibits the highest reduced glass transition temperature (Trg). However, the best GFA was obtained for alloy with x = 48 corresponding to the largest supercooled liquid region (ΔTx) and a deep eutectic composition. At the best GFA composition, full glassy samples with diameters of over 20 mm could be fabricated by injection copper mold casting and water quenching without flux. The underlying mechanism of the unusual GFA of the alloy is discussed.

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TABLE I
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Acknowledgment

This work was financially supported by the Research and Development Project on Advanced Metallic Glasses, Inorganic Materials and Joining Technology from the Ministry of Education, Science, Sports, and Culture of Japan.

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Authors and Affiliations

  1. Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan

    Wei Zhang, Qingsheng Zhang & Akihisa Inoue

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  1. Wei Zhang
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  2. Qingsheng Zhang
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  3. Akihisa Inoue
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Correspondence to Wei Zhang.

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Zhang, W., Zhang, Q. & Inoue, A. Fabrication of Cu–Zr–Ag–Al glassy alloy samples with a diameter of 20 mm by water quenching. Journal of Materials Research 23, 1452–1456 (2008). https://doi.org/10.1557/JMR.2008.0183

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  • DOI: https://doi.org/10.1557/JMR.2008.0183

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