Fatigue damage and fracture behavior of tungsten fiber reinforced Zr-based metallic glassy composite

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	Fatigue damage and fracture behavior of tungsten fiber reinforced Zr-based metallic glassy composite
	H. Zhang; Z. F. Zhang; Z. G. Wang; K. Q. Qiu; H. F. Zhang; Q. S. Zang; Z. Q. Hu
	2006
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	418 期号:1-2 页码:146-154
摘要	The fatigue life, damage and fracture behavior of tungsten fiber reinforced metallic glass Zr41.25Ti13.75Ni10Cu12.5Be22.5 composites are investigated under cyclic push-pull loading. It is found that the fatigue life of the composite increases with increasing the volume fraction of tungsten fibers. Similar to crystalline metals, the regions of crack initiation, propagation and overload fracture can be discerned on the fracture surface of the specimen. Fatigue crack normally initiates in the metallic glass matrix at the outer surface of the composite specimen and propagates predominantly in the matrix. Different crack front profile around the tungsten fibers and fiber pullout demonstrate that fatigue crack may propagate around the fiber, leading to bridging of the crack faces by the unbroken fiber and hence improved fatigue crack-growth resistance. Locally decreased effective stiffness in the region where fiber distribution is sparse may provide preferential crack path in the composite. A proposed model was exercised to elucidate different tungsten fiber fracture morphologies in the fatigue crack propagation and overload fracture regions in the light of Poisson's ratio effect during fatigue loading. (c) 2005 Published by Elsevier B.V.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;zhang, zf (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;zhfzhang@imr.ac.cn
关键词	Metallic Glass Composite Tungsten Fiber Cyclic Loading Fatigue Crack Ni-cu-be Bulk Amorphous-alloys Mechanical-properties Crack Propagation Matrix Composites Supercooled Liquid Toughness Deformation Tensile Growth
URL	查看原文
WOS记录号	WOS:000235769400019
引用统计	被引频次：15[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/321006/34688
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. Fatigue damage and fracture behavior of tungsten fiber reinforced Zr-based metallic glassy composite[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2006,418(1-2):146-154.
APA	H. Zhang.,Z. F. Zhang.,Z. G. Wang.,K. Q. Qiu.,H. F. Zhang.,...&Z. Q. Hu.(2006).Fatigue damage and fracture behavior of tungsten fiber reinforced Zr-based metallic glassy composite.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,418(1-2),146-154.
MLA	H. Zhang,et al."Fatigue damage and fracture behavior of tungsten fiber reinforced Zr-based metallic glassy composite".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 418.1-2(2006):146-154.