Microstructure evolution and mechanical properties of Cu46Zr47Al7 bulk metallic glass composite containing CuZr crystallizing phases

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	Microstructure evolution and mechanical properties of Cu46Zr47Al7 bulk metallic glass composite containing CuZr crystallizing phases
	F. Jiang; D. H. Zhang; L. C. Zhang; Z. B. Zhang; L. He; J. Sun; Z. F. Zhang
	2007
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	467 期号:1-2 页码:139-145
摘要	Cu46Zr47Al7 ternary bulk metallic glass (BMG) and its composite containing CuZr crystallizing phases were obtained through water-cooled copper mold casting. There is an obvious microstructure transition of CuZr crystallizing phase due to the decrease in the cooling rate: disperse small dendrites-regular radial dendrites-martensite phase. Under compression, the CuZr crystallizing phases particularly for martensite phase yield first and stimulate the formation of multiple shear bands in the matrix, which enhanced the ductility of the composite. The quasi-static compression fracture surface of the BMG its composites display a mixture of three distinct patterns: vein-like, smooth regions and river-like patterns. The river-like pattern was related with the secondary shear bands or tertiary shear bands and its area fraction on the fracture surface was dependent on the plasticity. (c) 2007 Elsevier B.V. All rights reserved.
部门归属	xian jiaotong univ, state key lab mech behav mat, xian 710049, peoples r china. chinese acad sci, shenyang natl lab mat sci, met res inst, shenyang 110016, peoples r china.;sun, j (reprint author), xian jiaotong univ, state key lab mech behav mat, xian 710049, peoples r china;junsun@mail.xjtu.edu.cn
关键词	Cu-based Metallic Glass Shear Bands Fracture Mechanism Ductility Nanostructure-dendrite Composite High-strength Compressive Plasticity Enhanced Plasticity Matrix-composites Amorphous-alloys Zr Deformation Martensite Morphology
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WOS记录号	WOS:000249146400019
引用统计	被引频次：51[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33609
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. Jiang,D. H. Zhang,L. C. Zhang,et al. Microstructure evolution and mechanical properties of Cu46Zr47Al7 bulk metallic glass composite containing CuZr crystallizing phases[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2007,467(1-2):139-145.
APA	F. Jiang.,D. H. Zhang.,L. C. Zhang.,Z. B. Zhang.,L. He.,...&Z. F. Zhang.(2007).Microstructure evolution and mechanical properties of Cu46Zr47Al7 bulk metallic glass composite containing CuZr crystallizing phases.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,467(1-2),139-145.
MLA	F. Jiang,et al."Microstructure evolution and mechanical properties of Cu46Zr47Al7 bulk metallic glass composite containing CuZr crystallizing phases".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 467.1-2(2007):139-145.