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Metals 2015, 5(4), 2134-2147;

Deformation-Induced Martensitic Transformation in Cu-Zr-Zn Bulk Metallic Glass Composites

Department of Physics, School of Science, Northwestern Polytechnical University, Youyi Xilu 127, 710072 Xi’an, China
School of Mechanical, Electrical & Information Engineering, Shandong University (Weihai), Wenhua Xilu 180, 264209 Weihai, China
IFW Dresden, Institute for Complex Materials, Helmholtzstraße 20, 01069 Dresden, Germany
Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, 100191 Beijing, China
Laboratory for Microstructures, Shanghai University, 200444 Shanghai, China
State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, 100191 Beijing, China
TU Dresden, Institut für Werkstoffwissenschaft, 01062 Dresden, Germany
Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, A-8700 Leoben, Austria
Department Materials Physics, Montanuniversität Leoben, Jahnstraße 12, A-8700 Leoben, Austria
Authors to whom correspondence should be addressed.
Academic Editors: K.C. Chan and Jordi Sort Viñas
Received: 23 October 2015 / Revised: 7 November 2015 / Accepted: 11 November 2015 / Published: 17 November 2015
(This article belongs to the Special Issue Metallic Glasses)
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The microstructures and mechanical properties of (Cu0.5Zr0.5)100−xZnx (x = 0, 1.5, 2.5, 4.5, 7, 10, and 14 at. %) bulk metallic glass (BMG) composites were studied. CuZr martensitic crystals together with minor B2 CuZr and amorphous phases dominate the microstructures of the as-quenched samples with low Zn additions (x = 0, 1.5, and 2.5 at. %), while B2 CuZr and amorphous phases being accompanied with minor martensitic crystals form at a higher Zn content (x = 4.5, 7, 10, and 14 at. %). The fabricated Cu-Zr-Zn BMG composites exhibit macroscopically appreciable compressive plastic strain and obvious work-hardening due to the formation of multiple shear bands and the deformation-induced martensitic transformation (MT) within B2 crystals. The present BMG composites could be a good candidate as high-performance structural materials. View Full-Text
Keywords: metallic glasses; composites; rapid solidification; martensitic transformation metallic glasses; composites; rapid solidification; martensitic transformation

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Wu, D.; Song, K.; Cao, C.; Li, R.; Wang, G.; Wu, Y.; Wan, F.; Ding, F.; Shi, Y.; Bai, X.; Kaban, I.; Eckert, J. Deformation-Induced Martensitic Transformation in Cu-Zr-Zn Bulk Metallic Glass Composites. Metals 2015, 5, 2134-2147.

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