Effect of Zr addition on the glass-forming ability and mechanical properties of Ni-Nb alloy

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	Effect of Zr addition on the glass-forming ability and mechanical properties of Ni-Nb alloy
	Z. W. Zhu; H. F. Zhang; W. S. Sun; Z. Q. Hu
	2007
发表期刊	Journal of Materials Research
ISSN	0884-2914
卷号	22 期号:2 页码:453-459
摘要	The effect of zirconium (Zr) addition on the glass-forming ability (GFA) and mechanical properties of the Ni61.5Nb38.1 alloy has been studied. The addition of Zr improves the GFA. When x = 5 for N61.5Nb38.1-xZrx (in at.%) alloys, the alloy exhibits the best GFA and can be cast into 3-mm-diameter amorphous samples by using the copper mold injection-casting method. Differential scanning calorimetry measurements indicated that the thermal parameters, such as T-rg and gamma, have not a good correlation with the GFA in the Ni-Nb-Zr alloys. Compression tests reveal that the addition of Zr just decreases the fracture strength slightly from 3.4 to 3 GPa and that all of the tested samples exhibit a little compressive plasticity of about 2%. When x = 9, the feature of the fracture surface Indicates that the alloy has a tendency for transition from the ductile to the brittle. And delicate "dimple" and microscale vein pattern Structures have been observed on it.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, 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	Bulk Metallic-glass Amorphous-alloys High-strength Enhanced Plasticity Supercooled Liquid Copper Mold Ti Sn Fabrication
URL	查看原文
WOS记录号	WOS:000244210800025
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/321006/34117
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. W. Zhu,H. F. Zhang,W. S. Sun,et al. Effect of Zr addition on the glass-forming ability and mechanical properties of Ni-Nb alloy[J]. Journal of Materials Research,2007,22(2):453-459.
APA	Z. W. Zhu,H. F. Zhang,W. S. Sun,&Z. Q. Hu.(2007).Effect of Zr addition on the glass-forming ability and mechanical properties of Ni-Nb alloy.Journal of Materials Research,22(2),453-459.
MLA	Z. W. Zhu,et al."Effect of Zr addition on the glass-forming ability and mechanical properties of Ni-Nb alloy".Journal of Materials Research 22.2(2007):453-459.