Effect of Nb on glass forming ability and plasticity of (Ti-Cu)-based bulk metallic glasses

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	Effect of Nb on glass forming ability and plasticity of (Ti-Cu)-based bulk metallic glasses
	Z. Y. Suo; K. Q. Qiu; Q. F. Li; Y. L. Ren; Z. Q. Hu
	2010
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	527 期号:10-11 页码:2486-2491
摘要	A Ti(33)Cu(47)Zr(9)Ni(6)Sn(2)Si(1)Nb(2) bulk metallic glass has been developed by Nb partial substitution for Zr in Ti(33)Cu(47)Zr(11)Ni(6)Sn(2)Si(1) alloy. The glass forming ability Ti(33)Cu(47)Zr(9)Ni(6)Sn(2)Si(1) Nb(2) alloy has been investigated using differential scanning calorimetry and X-ray diffractometry. Partial Nb substitutes for Zr promote the glass forming ability. Ti(33)Cu(47)Zr(9)Ni(6)Sn(2)Si(1) Nb(2) BMG with diameter of 3 mm can be fabricated by Cu-mold injection casting method. The glass forming ability of Ti(33)Cu(47)Zr(9)Ni(6)Sn(2)Si(1) Nb(2) alloy is enhanced by stabilizing the undercooled liquid against crystallization. The plastic strain up to 2.5% was obtained for Ti(33)Cu(47)Zr(9)Ni(6)Sn(2)Si(1) Nb(2) BMG compared to 0.15% for Ti(33)Cu(47)Zr(11)Ni(6)Sn(2)Si(1) BMG, which demonstrates that small amount of Nb addition can have a dramatic effect on plasticity enhancement in Ti-Cu-based BMG. The intersection and branching of the shear bands are observed. The plastic strain of the Ti(33)Cu(47)Zr(9)Ni(6)Sn(2)Si(1) Nb(2) BMG can be improved by the generation of nanocrystalline particles, which lead to multiple shear bands. (C) 2010 Elsevier B.V. All rights reserved.
部门归属	[suo, z. y.; qiu, k. q.; li, q. f.; ren, y. l.] shenyang univ technol, sch mat sci & engn, shenyang 110870, peoples r china. [hu, z. q.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;qiu, kq (reprint author), shenyang univ technol, sch mat sci & engn, 111 w shenliao rd, shenyang 110870, peoples r china;kqqiu@yahoo.com.cn
关键词	Ti-cu-based Metallic Glasses Glass Forming Ability Mechanical Properties In-situ Formation Mechanical-properties Thermal-stability Cu Alloys Zr Sn Behavior Microstructure Deformation
URL	查看原文
WOS记录号	WOS:000276137600005
引用统计	被引频次：19[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/321006/31464
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. Y. Suo,K. Q. Qiu,Q. F. Li,et al. Effect of Nb on glass forming ability and plasticity of (Ti-Cu)-based bulk metallic glasses[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2010,527(10-11):2486-2491.
APA	Z. Y. Suo,K. Q. Qiu,Q. F. Li,Y. L. Ren,&Z. Q. Hu.(2010).Effect of Nb on glass forming ability and plasticity of (Ti-Cu)-based bulk metallic glasses.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,527(10-11),2486-2491.
MLA	Z. Y. Suo,et al."Effect of Nb on glass forming ability and plasticity of (Ti-Cu)-based bulk metallic glasses".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 527.10-11(2010):2486-2491.