Shear band formation and mechanical properties of Zr38Ti17Cu10.5Co12Be22.5 bulk metallic glass/porous tungsten phase composite by hydrostatic extrusion

doi:10.1016/j.msea.2010.06.006

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	Shear band formation and mechanical properties of Zr38Ti17Cu10.5Co12Be22.5 bulk metallic glass/porous tungsten phase composite by hydrostatic extrusion
	Xue, Y. F.1; Wang, L.1; Cheng, H. W.1; Wang, F. C.1; Zhang, H. F.2
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2010-08-20
卷号	527 期号:21-22 页码:5909-5914
关键词	Bulk metallic glass Porous tungsten Composite Hydrostatic extrusion Shear bands
ISSN号	0921-5093
DOI	10.1016/j.msea.2010.06.006
通讯作者	Xue, Y. F.(xueyunfei@bit.edu.cn)
英文摘要	Zr38Ti17Cu10.5Co12Be22.5 bulk metallic glass/porous tungsten phase composites were prepared via a method by combining infiltrating the molten alloy into the reinforcement with hydrostatic extrusion. The deformation and failure behavior of the as-extruded composite were investigated at room temperature under quasistatic compression. Compared to the as-cast composite, the as-extruded composite presented greater flow stress and lower fracture strain. Different from the fracture mode of multiple macro shear bands for the as-cast composite, fractrographic analysis revealed that the specimen for the as-extruded composite fractured by a mixture of shearing and axial splitting. It is suggested that the increase in flow stress for the as-extruded composite is attributed to the extrusion process which introduced hardened condition in the tungsten phase. The fracture strain of the as-extruded composite decreased by comparison with the as-cast composite is proposed to result from the joint effects of the employed extrusion process sacrificed part of the plasticity, relatively high flow stress exceeded the fracture stress of the pure metallic glass, and the elongated grain structure resulted in splitting mode for the as-extruded composite. (C) 2010 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[10872032]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000281175300078
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/101100]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xue, Y. F.
作者单位	1.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xue, Y. F.,Wang, L.,Cheng, H. W.,et al. Shear band formation and mechanical properties of Zr38Ti17Cu10.5Co12Be22.5 bulk metallic glass/porous tungsten phase composite by hydrostatic extrusion[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2010,527(21-22):5909-5914.
APA	Xue, Y. F.,Wang, L.,Cheng, H. W.,Wang, F. C.,&Zhang, H. F..(2010).Shear band formation and mechanical properties of Zr38Ti17Cu10.5Co12Be22.5 bulk metallic glass/porous tungsten phase composite by hydrostatic extrusion.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,527(21-22),5909-5914.
MLA	Xue, Y. F.,et al."Shear band formation and mechanical properties of Zr38Ti17Cu10.5Co12Be22.5 bulk metallic glass/porous tungsten phase composite by hydrostatic extrusion".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 527.21-22(2010):5909-5914.