期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 803, 期 -, 页码 413-416出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.06.310
关键词
Bulk metallic glass; Composites; Mechanical properties; Core-shell; Ductility
资金
- National Natural Science Foundation of China [51401104]
- Excellent Youth Foundation of Jiangsu Scientific Committee [BK20180106]
- Qinglan Project of Jiangsu Province of China
- Innovation Funds of Nanjing Institute of Technology [CKJA201703]
- Opening Project of Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology [ASMA201705]
Using the ZrO2 particles as precursor, a novel alpha-Zr/beta-Zr core-shell structure reinforced Zr-based metallic glass (Zr-BMG) composite was fabricated. The oxygen is mainly concentrated in the alpha-Zr core, resulting in the very high hardness of alpha-Zr core. The beta-Zr shell contained the relatively moderate amount of oxygen still has good ductility and work hardenability. The alpha-Zr/beta-Zr core-shell structure reinforced Zr-BMG composite combined the advantages of the soft ductile and hard brittle phase reinforced BMG composites, and thereby exhibits the high strength and good tensile ductility. These findings give a new perspective to adjust the mechanical properties of the BMG composites. (C) 2019 Elsevier B.V. All rights reserved.
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