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Metals 2015, 5(4), 2134-2147; doi:10.3390/met5042134

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

1
Department of Physics, School of Science, Northwestern Polytechnical University, Youyi Xilu 127, 710072 Xi’an, China
2
School of Mechanical, Electrical & Information Engineering, Shandong University (Weihai), Wenhua Xilu 180, 264209 Weihai, China
3
IFW Dresden, Institute for Complex Materials, Helmholtzstraße 20, 01069 Dresden, Germany
4
Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, 100191 Beijing, China
5
Laboratory for Microstructures, Shanghai University, 200444 Shanghai, China
6
State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, 100191 Beijing, China
7
TU Dresden, Institut für Werkstoffwissenschaft, 01062 Dresden, Germany
8
Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, A-8700 Leoben, Austria
9
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)
View Full-Text   |   Download PDF [691 KB, uploaded 19 November 2015]   |  

Abstract

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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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

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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