A Cu49Zr51 intermetallic is used as a base for synthesizing metallic glasses and composites with glass matrixes [(Cu49Zr51)100 – x Al x , where x = 0, 2, 4, 6, 8, 10 and 12 at.%]. The introduction of aluminum raises the microhardness and the ultimate compressive strength. In addition, the suppression of formation of crystalline phase upon the introduction of 8 at.% Al provides a glass-like structure in alloy (Cu49Zr51)92Al8. The formation of the glass-like structure is discussed within the concept of competitive nucleation of different intermetallics.
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Here and below in the paper the content of aluminum is given in atomic percent.
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The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (Grant No. 50804015) and of the Program for New Century Excellent Talents in University (Grant No. NCET-10-0360).
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 8, pp. 36 – 39, August, 2016.
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Ma, G.Z., Chen, D. Design of Bulk Metallic Glasses and Glass Matrix Composites Near Intermetallic Composition by the Principle of Competitive Growth. Met Sci Heat Treat 58, 483–486 (2016). https://doi.org/10.1007/s11041-016-0040-6
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DOI: https://doi.org/10.1007/s11041-016-0040-6