Effects of tungsten fiber on failure mode of Zr-based bulk metallic glassy composite

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	Effects of tungsten fiber on failure mode of Zr-based bulk metallic glassy composite; Effects of tungsten fiber on failure mode of Zr-based bulk metallic glassy composite
	H. Zhang; Z. F. Zhang; Z. G. Wang; K. Q. Qiu; H. F. Zhang; Q. S. Zang
	2006 ; 2006
发表期刊	Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science ; Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science
ISSN	1073-5623 ; 1073-5623
卷号	37A 期号:8 页码:2459-2469
摘要	The authors systematically investigated the effects of tungsten fiber on failure mode as well as deformation and fracture mechanisms in tungsten fiber-reinforced Zr41.25Ti13.75Ni10Cu12.5Be22.5 bulk metallic glassy composite under uniaxial compression at room and high temperatures. At room temperature, the failure mode of the composite changes from shear fracture to longitudinal splitting failure with increasing fiber volume fraction. Similar to the observations in monolithic metallic glasses, the shear fracture angle of the composite is approximately equal to 39 similar to 40 deg, indicating that the Mohr-Coulomb criterion is suitable to give the critical shear fracture condition of the composite. When the compression tests were performed below the glass transition temperature of Zr41.25Ti13.75Ni10Cu12.5Be22.5 metallic glass T-g, the deformation behavior of the composite strongly depends on the strain rates and the test temperature, which is quite similar to the deformation behavior of monolithic metallic glasses in the supercooled liquid region. The corresponding failure mode of the composite changes from shear or splitting fracture to bending failure with decreasing strain rate or increasing test temperature. The failure modes at the temperature near Tg are mainly controlled by the metallic glass matrix due to the decrease in its viscosity at high temperature. Based on these multiple failure modes, the effects of test temperature and tungsten fiber volume fraction on deformation and fracture mechanisms are summarized.; The authors systematically investigated the effects of tungsten fiber on failure mode as well as deformation and fracture mechanisms in tungsten fiber-reinforced Zr41.25Ti13.75Ni10Cu12.5Be22.5 bulk metallic glassy composite under uniaxial compression at room and high temperatures. At room temperature, the failure mode of the composite changes from shear fracture to longitudinal splitting failure with increasing fiber volume fraction. Similar to the observations in monolithic metallic glasses, the shear fracture angle of the composite is approximately equal to 39 similar to 40 deg, indicating that the Mohr-Coulomb criterion is suitable to give the critical shear fracture condition of the composite. When the compression tests were performed below the glass transition temperature of Zr41.25Ti13.75Ni10Cu12.5Be22.5 metallic glass T-g, the deformation behavior of the composite strongly depends on the strain rates and the test temperature, which is quite similar to the deformation behavior of monolithic metallic glasses in the supercooled liquid region. The corresponding failure mode of the composite changes from shear or splitting fracture to bending failure with decreasing strain rate or increasing test temperature. The failure modes at the temperature near Tg are mainly controlled by the metallic glass matrix due to the decrease in its viscosity at high temperature. Based on these multiple failure modes, the effects of test temperature and tungsten fiber volume fraction on deformation and fracture mechanisms are summarized.
部门归属	chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. shenyang univ technol, sch mat sci & engn, shenyang 110023, peoples r china.;zhang, h (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china;zhfzhang@imr.ac.cn ; chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. shenyang univ technol, sch mat sci & engn, shenyang 110023, peoples r china.;zhang, h (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china;zhfzhang@imr.ac.cn
关键词	Supercooled Liquid Region Supercooled Liquid Region Phase Dendrite Dispersions Phase Dendrite Dispersions Fatigue-crack Fatigue-crack Propagation Propagation Ni-cu-be Ni-cu-be Mechanical-properties Mechanical-properties Matrix Composites Matrix Composites Deformation-behavior Deformation-behavior Fracture-toughness Fracture-toughness Ductile Dendrites Ductile Dendrites Amorphous-alloys Amorphous-alloys
URL	查看原文 ; 查看原文
WOS记录号	WOS:000239525900013 ; WOS:000239525900013
引用统计	被引频次：34[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/321006/34687
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. Zhang,Z. F. Zhang,Z. G. Wang,et al. Effects of tungsten fiber on failure mode of Zr-based bulk metallic glassy composite, Effects of tungsten fiber on failure mode of Zr-based bulk metallic glassy composite[J]. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science, Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,2006, 2006,37A, 37A(8):2459-2469, 2459-2469.
APA	H. Zhang,Z. F. Zhang,Z. G. Wang,K. Q. Qiu,H. F. Zhang,&Q. S. Zang.(2006).Effects of tungsten fiber on failure mode of Zr-based bulk metallic glassy composite.Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,37A(8),2459-2469.
MLA	H. Zhang,et al."Effects of tungsten fiber on failure mode of Zr-based bulk metallic glassy composite".Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 37A.8(2006):2459-2469.