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Title: Deformation-induced martensitic transformation in Cu-Zr-Zn bulk metallic glass composites
Authors: Wu, DianyuSong, KaikaiCao, ChongdeLi, RanWang, GangWu, YuanWan, FengDing, FuliShi, YueBai, XiaojunKaban, IvanEckert, Jürgen
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Issue Date: 2015
Published in: Metals, Volume 5, Issue 4, Page 2134-2147
Publisher: Basel : MDPI
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.
Keywords: Metallic glasses; composites; rapid solidification; martensitic transformation
DDC: 620
License: CC BY 4.0 Unported
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