Fracture surface morphology of Mg-based bulk metallic glass and composite during quasi-static and dynamic compressive deformation

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	Fracture surface morphology of Mg-based bulk metallic glass and composite during quasi-static and dynamic compressive deformation
	J. Q. Li; L. Wang; H. W. Cheng; H. F. Zhang; Z. Q. Hu; H. N. Cai
	2009
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	478 期号:1-2 页码:827-830
摘要	The different fracture features developed during quasi-static and dynamic compressive deformation of Mg-based bulk metallic glass and composite reinforced by SiC particulate were investigated. Mg-based amorphous glass fractures on one major plane and shows a planar and smooth fracture surface upon quasi-static loading. The fracture surface of composite is rough,which is composed of a great deal of small mirror planes in quasi-static tests. Rugged fracture surfaces were observed both in Mg-based amorphous glass and composite during dynamic deformation. A large area of molten liquid spreads over the whole fracture surface, indicating more severe temperature rise occurs during dynamic deformation. When encountering SiC particulates during propagation, cracks cut through (sometimes being stopped inside the particulate) or bypass the particle. The fact that cracks cut through or bypass particles reflects the strong bonding at the particle-matrix interfaces and the effective load transfer from matrix to the reinforcing particles. The block function to crack propagation due to the presence of particles is expected for shear bands before cracking initiates inside the shear bands, avoiding the formation of major shear band and the catastrophic failure likely. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[li, j. q.; wang, l.; cheng, h. w.; cai, h. n.] beijing inst technol, sch mat sci & engn, beijing 100081, peoples r china. [li, j. q.; 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	Metallic Glasses Composite Fracture Surface Matrix Composites Mechanical-properties Crystallization Transition Strength Alloys
URL	查看原文
WOS记录号	WOS:000266786400168
引用统计	被引频次：12[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/321006/32024
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Q. Li,L. Wang,H. W. Cheng,et al. Fracture surface morphology of Mg-based bulk metallic glass and composite during quasi-static and dynamic compressive deformation[J]. Journal of Alloys and Compounds,2009,478(1-2):827-830.
APA	J. Q. Li,L. Wang,H. W. Cheng,H. F. Zhang,Z. Q. Hu,&H. N. Cai.(2009).Fracture surface morphology of Mg-based bulk metallic glass and composite during quasi-static and dynamic compressive deformation.Journal of Alloys and Compounds,478(1-2),827-830.
MLA	J. Q. Li,et al."Fracture surface morphology of Mg-based bulk metallic glass and composite during quasi-static and dynamic compressive deformation".Journal of Alloys and Compounds 478.1-2(2009):827-830.