Direct Observation on the Evolution of Shear Banding and Buckling in Tungsten Fiber Reinforced Zr-Based Bulk Metallic Glass Composite

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	Direct Observation on the Evolution of Shear Banding and Buckling in Tungsten Fiber Reinforced Zr-Based Bulk Metallic Glass Composite
	J. H. Chen; Y. Chen; M. Q. Jiang; X. W. Chen; H. M. Fu; H. F. Zhang; L. H. Dai
	2014
发表期刊	Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science
ISSN	1073-5623
卷号	45A 期号:12 页码:5397-5408
摘要	The evolution of micro-damage and deformation of each phase in the composite plays a pivotal role in the clarification of deformation mechanism of composite. However, limited model and mechanical experiments were conducted to reveal the evolution of the deformation of the two phases in the tungsten fiber reinforced Zr-based bulk metallic glass composite. In this study, quasi-static compressive tests were performed on this composite. For the first time, the evolution of micro-damage and deformation of the two phases in this composite, i.e., shear banding of the metallic glass matrix and buckling deformation of the tungsten fiber, were investigated systematically by controlling the loading process at different degrees of deformation. It is found that under uniaxial compression, buckling of the tungsten fiber occurs first, while the metallic glass matrix deforms homogeneously. Upon further loading, shear bands initiate from the fiber/matrix interface and propagate in the metallic glass matrix. Finally, the composite fractures in a mixed mode, with splitting in the tungsten fiber, along with shear fracture in the metallic glass matrix. Through the analysis on the stress state in the composite and resistance to shear banding of the two phases during compressive deformation, the possible deformation mechanism of the composite is unveiled. The deformation map of the composite, which covers from elastic deformation to final fracture, is obtained as well.
部门归属	[chen, j. h. ; chen, y. ; jiang, m. q.] chinese acad sci, inst mech, state key lab nonlinear mech, beijing 100190, peoples r china. [chen, x. w.] china acad engn phys, inst syst engn, mianyang 621999, sichuan, peoples r china. [fu, h. m. ; zhang, h. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [dai, l. h.] chinese acad sci, inst mech, state key lab nonlinear mech, beijing 100864, peoples r china. [dai, l. h.] beijing inst technol, state key lab explos sci & technol, beijing 100081, peoples r china. ; dai, lh (reprint author), chinese acad sci, inst mech, state key lab nonlinear mech, beijing 100864, peoples r china. ; lhdai@lnm.imech.ac.cn
关键词	Phase Dendrite Dispersions Matrix Composites Mechanical-properties Deformation Behaviors Amorphous-alloys Toughness Fracture Microstructure Dissipation Thickness
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73193
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. H. Chen,Y. Chen,M. Q. Jiang,et al. Direct Observation on the Evolution of Shear Banding and Buckling in Tungsten Fiber Reinforced Zr-Based Bulk Metallic Glass Composite[J]. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,2014,45A(12):5397-5408.
APA	J. H. Chen.,Y. Chen.,M. Q. Jiang.,X. W. Chen.,H. M. Fu.,...&L. H. Dai.(2014).Direct Observation on the Evolution of Shear Banding and Buckling in Tungsten Fiber Reinforced Zr-Based Bulk Metallic Glass Composite.Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,45A(12),5397-5408.
MLA	J. H. Chen,et al."Direct Observation on the Evolution of Shear Banding and Buckling in Tungsten Fiber Reinforced Zr-Based Bulk Metallic Glass Composite".Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 45A.12(2014):5397-5408.