Deformation and failure behavior of a hydrostatically extruded Zr(38)Ti(17)Cu(10.5)Co(12)Be(22.5) bulk metallic glass/porous tungsten phase composite under dynamic compression

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	Deformation and failure behavior of a hydrostatically extruded Zr(38)Ti(17)Cu(10.5)Co(12)Be(22.5) bulk metallic glass/porous tungsten phase composite under dynamic compression
	Y. F. Xue; H. N. Cai; L. Wang; F. C. Wang; H. F. Zhang; Z. Q. Hu
	2008
发表期刊	Composites Science and Technology
ISSN	0266-3538
卷号	68 期号:15-16 页码:3396-3400
摘要	Hydrostatic extrusion of a Zr(38)Ti(17)Co(10.5)Co(12)Be(22.5) bulk metallic glass/porous tungsten phase composite was perform ed, and the dynamic compressive deformation and fracture behavior of the as-extruded composite we. re investigated in detail at room temperature by means of the Split Hopkinson Pressure Bar (SHPB). In comparison with the as-cast composite, the as-extruded composite presented a much higher flow stress without sacrificing plasticity under dynamic compression,. exhibiting ductility increment, but evidence of work softening was observed. The specimen for the as-extruded composite failed by axial splitting with occasional shear fracture in some regions. It is suggested that the increase in flow stress and ductility of the as-extruded composite is attributed to the extrusion process which introduced hardened condition and texture in the tungsten phase as well as the 3D net structure of the porous tungsten phase. The work softening mechanism, Wears to be essentially associated with the large number of microcracks and voids under dynamic compression. (C) 2008 Elsevier Ltd. All rights reserved.
部门归属	[xue, y. f.; cai, h. n.; wang, l.; wang, f. c.] beijing inst technol, sch mat sci & engn, beijing 100081, peoples r china. [zhang, h. f.; hu, z. q.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;wang, l (reprint author), beijing inst technol, sch mat sci & engn, beijing 100081, peoples r china;wanglu@bit.edu.cn
关键词	Amorphous Materials Mechanical Properties Fractography Extrusion Polycrystalline Tungsten Mechanical-properties Fracture-toughness Glass Composites Amorphous-alloys Ductility
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33259
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. F. Xue,H. N. Cai,L. Wang,et al. Deformation and failure behavior of a hydrostatically extruded Zr(38)Ti(17)Cu(10.5)Co(12)Be(22.5) bulk metallic glass/porous tungsten phase composite under dynamic compression[J]. Composites Science and Technology,2008,68(15-16):3396-3400.
APA	Y. F. Xue,H. N. Cai,L. Wang,F. C. Wang,H. F. Zhang,&Z. Q. Hu.(2008).Deformation and failure behavior of a hydrostatically extruded Zr(38)Ti(17)Cu(10.5)Co(12)Be(22.5) bulk metallic glass/porous tungsten phase composite under dynamic compression.Composites Science and Technology,68(15-16),3396-3400.
MLA	Y. F. Xue,et al."Deformation and failure behavior of a hydrostatically extruded Zr(38)Ti(17)Cu(10.5)Co(12)Be(22.5) bulk metallic glass/porous tungsten phase composite under dynamic compression".Composites Science and Technology 68.15-16(2008):3396-3400.