Enhanced strength and plasticity of a Ti-based metallic glass at cryogenic temperatures

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	Enhanced strength and plasticity of a Ti-based metallic glass at cryogenic temperatures
	Y. J. Huang; J. Shen; J. F. Sun; Z. F. Zhang
	2008
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	498 期号:1-2 页码:203-207
摘要	Conventional crystalline materials usually exhibit a ductile to brittle transition behaviour at low temperatures. An increase in the strength is always accompanied by a decrease in the plasticity. Here the authors report on a significant enhancement in both compressive strength and plasticity of a Ti-based bulk metallic glass (BMG) deformed at low temperatures. The ductilization of the BMG system can be evidently attributed to the formation of dense shear bands and the rotation mechanism of shear bands. The cryogenic Surroundings can effectively slow down the mobility and diffusion of the atoms and consequently, suppress the nucleation and growth of nanocrystals during the deformation process, allowing the simultaneous improvement in the mechanical responses of the glassy alloy to compressive loading far below the ambient temperature. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[huang, yongjiang; shen, jun; sun, jianfei] harbin inst technol, sch mat sci & engn, harbin 150001, peoples r china. [zhang, zhefeng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;shen, j (reprint author), harbin inst technol, sch mat sci & engn, harbin 150001, peoples r china;junshen@hit.edu.cn zhfzhang@imr.ac.cn
关键词	Metallic Glasses Mechanical Properties Cryogenic Temperatures Shear Bands Plasticity Bulk Amorphous-alloys Shear Bands Mechanical-properties Matrix Composites Room-temperature Deformation Tensile Ductility Nanocrystallization Behavior
URL	查看原文
WOS记录号	WOS:000261420500029
引用统计	被引频次：69[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/321006/32834
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. J. Huang,J. Shen,J. F. Sun,et al. Enhanced strength and plasticity of a Ti-based metallic glass at cryogenic temperatures[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2008,498(1-2):203-207.
APA	Y. J. Huang,J. Shen,J. F. Sun,&Z. F. Zhang.(2008).Enhanced strength and plasticity of a Ti-based metallic glass at cryogenic temperatures.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,498(1-2),203-207.
MLA	Y. J. Huang,et al."Enhanced strength and plasticity of a Ti-based metallic glass at cryogenic temperatures".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 498.1-2(2008):203-207.