Effect of Sn addition on the glass-forming ability and mechanical properties of Ni-Nb-Zr bulk metallic glasses

IMR OpenIR

	Effect of Sn addition on the glass-forming ability and mechanical properties of Ni-Nb-Zr bulk metallic glasses
	D. K. Li; H. F. Zhang; A. M. Wang; Z. W. Zhu; Z. Q. Hu
	2011
发表期刊	Chinese Science Bulletin
ISSN	1001-6538
卷号	56 期号:36 页码:3926-3931
摘要	The effect of tin (Sn) addition on the glass forming ability (GFA) and mechanical properties of the Ni-Nb-Zr ternary alloy system has been studied. The addition of Sn improves the GFA; Ni(61)Nb(35.5-x) Zr(3.5)Sn (x) (in at.%) alloys with x=1 can be cast into amorphous samples at least 3 mm in diameter using a copper mold injection-casting method. The critical size for glass formation decreases to 2 mm when x=5 because Ni(2)SnZr phase precipitates readily. The addition of Sn is also effective in enhancing the stability of the supercooled liquid; a maximum supercooled liquid region of 48 K was attained for the Ni(61)Nb(30.5)Zr(3.5)Sn(5) alloy. Compression tests reveal that the Ni(61)Nb(33.5)Zr(3.5)Sn(2) alloy possesses the best mechanical properties, with yield strength similar to 3180 MPa, fracture strength similar to 3390 MPa and plastic strain similar to 1.3%. The fracture surfaces examined by scanning electron microscopy indicate that the alloys have a transition from ductility to brittleness in fracture behavior. The combination of high GFA, high thermal stability, high strength and compressive plasticity makes these alloys potentially attractive for engineering applications.
部门归属	[li dengke; zhang haifeng; wang aimin; zhu zhengwang; hu zhuangqi] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [li dengke] chinese acad sci, grad univ, beijing 100049, peoples r china.;zhang, hf (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;hfzhang@imr.ac.cn
关键词	Metallic Glasses Glass Transition Thermal Stability Mechanical Properties Amorphous-alloys High-strength Shear Bands System Plasticity Fabrication Initiation Mm
URL	查看原文
WOS记录号	WOS:000297866900007
引用统计	被引频次：13[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/321006/30456
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. K. Li,H. F. Zhang,A. M. Wang,et al. Effect of Sn addition on the glass-forming ability and mechanical properties of Ni-Nb-Zr bulk metallic glasses[J]. Chinese Science Bulletin,2011,56(36):3926-3931.
APA	D. K. Li,H. F. Zhang,A. M. Wang,Z. W. Zhu,&Z. Q. Hu.(2011).Effect of Sn addition on the glass-forming ability and mechanical properties of Ni-Nb-Zr bulk metallic glasses.Chinese Science Bulletin,56(36),3926-3931.
MLA	D. K. Li,et al."Effect of Sn addition on the glass-forming ability and mechanical properties of Ni-Nb-Zr bulk metallic glasses".Chinese Science Bulletin 56.36(2011):3926-3931.