微量添加Sn和Nb对Zr-Cu-Fe-Al块体非晶合金热稳定性和塑性的影响
杨 滨, 男, 1960年生, 教授
修回日期: 2014-09-02
网络出版日期: 2015-05-01
基金资助
*北京市自然科学基金项目2122039, 长江学者和创新团队发展计划和北京科技大学新金属材料国家重点实验室自主课题项目资助
EFFECT OF MINOR Sn AND Nb ADDITIONS ON THE THERMAL STABILITY AND COMPRESSIVE PLASTICITY OF Zr-Cu-Fe-Al BULK METALLIC GLASS
Revised date: 2014-09-02
Online published: 2015-05-01
Supported by
Supported by Beijing Municipal Natural Science Foundation (No.2122039) and Program for ChangJiang Scholars and Innovative Research Team in University and State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing
采用Cu模铸造方法制备了直径2和3 mm的Zr61.5Cu21.5-xFe5Al11Sn1Nbx (x=0, 1, 2, 原子分数, %)和Zr61.5Cu21.5Fe5Al12非晶合金棒. 结果表明, Sn和Nb微合金化略微降低了Zr-Cu-Fe-Al非晶合金的玻璃形成能力. Zr61.5Cu19.5Fe5Al11Sn1Nb2非晶合金具有优异的压缩塑性, 并且表现出“应变硬化”现象. 高分辨透射电镜观察显示Zr61.5Cu19.5Fe5Al11Sn1Nb2和Zr61.5Cu21.5Fe5Al12合金均为完全非晶态, Sn和Nb微合金化后合金内部原子排列更紧密. 正电子湮没谱分析结果表明, 与Zr61.5Cu21.5Fe5Al12非晶合金相比, Zr61.5Cu19.5Fe5Al11Sn1Nb2非晶合金内部原子密排间隙和结构自由体积尺寸减小、总量增加. 大量弥散分布的自由体积有利于Zr61.5Cu19.5Fe5Al11Sn1Nb2非晶合金剪切带的形成、分枝和相互作用, 最终改善了非晶合金的塑性.
关键词： Sn和Nb微合金化; Zr-Cu-Fe-Al块体非晶; 热稳定性; 塑性
杨滨 , 李鑫 , 罗文东 , 李宇翔 . 微量添加Sn和Nb对Zr-Cu-Fe-Al块体非晶合金热稳定性和塑性的影响[J]. 金属学报, 2015 , 51(4) : 465 -472 . DOI: 10.11900/0412.1961.2014.00485
New Ni-free Zr61.5Cu21.5-xFe5Al11Sn1Nbx (x=0,1, 2, atomic fraction, %) and Zr61.5Cu21.5Fe5Al12 bulk metallic glasses (BMGs) rods with diameters of 2 and 3 mm were fabricated by copper mold casting. In order to improve the plasticity of the Zr61.5Cu21.5Fe5Al12 BMG, minor Sn and Nb with lower thermal neutron cross-sections was added into the Zr-Cu-Fe-Al alloy. The experimental results showed that the glass-forming abilities of the BMGs with Sn and Nb elements were reduced slightly. Among them with Sn and Nb elements, however, Zr61.5Cu19.5Fe5Al11Sn1Nb2 BMG exhibits high compressive strength, high ductility together with extensive “work hardening”. HRTEM study verifies the glassy states of both Zr61.5Cu19.5Fe5Al11Sn1Nb2 and Zr61.5Cu21.5Fe5Al12 alloys samples. The difference between the microstructures of the BMGs samples with and without Sn and Nb elements is that the atomic arrangement in Zr61.5Cu19.5Fe5Al11Sn1Nb2 BMG is more closely than that in Zr61.5Cu21.5Fe5Al12 BMG. Positron annihilation lifetime spectroscopy study showed further that the Zr61.5Cu19.5Fe5Al11Sn1Nb2 BMG has more closely atomic arrangement than the Zr61.5Cu21.5Fe5Al12 BMG. The structural free-volume size of the former BMG is smaller than that of the latter BMG. And the total free-volume amount of the former BMG is obviously higher than that of the latter BMG. Uniformly distributed free volume is beneficial to improve the shear band formation, branching, and interactions of the Zr61.5Cu19.5Fe5Al11Sn1Nb2 BMG, which increases finally the compressive ductility of the BMG.
| [1] | Zhang Q S, Zhang W, Inoue A. Scr Mater, 2009; 61: 241 |
| [2] | Inoue A, Zhang Q S, Zhang W, Yubuta K, Son K S, Wang X M. Mater Trans, 2009; 50: 388 |
| [3] | Wang W H. Prog Mater Sci, 2012; 57: 487 |
| [4] | Jiang Q K, Wang X D, Nie X P, Zhang G Q, Ma H, Fecht H J, Bendnarcik J, Franz H, Liu Y G, Can Q P, Jiang J Z. Acta Mater, 2008; 56: 1785 |
| [5] | Zhang Q S, Zhang W, Inoue A. Mater Trans, 2008; 49: 2743 |
| [6] | Johnson W L. MRS Bull, 1999; 24: 42 |
| [7] | Liu J Z. Nuclear Structural Materials. Beijing: Chemical Industry Press, 2007: 162 |
| [7] | (刘建章. 核结构材料. 北京: 化学工业出版社, 2007: 162) |
| [8] | Chen H M,Ma C L,Bai X D. Corrosion and Protection of Nuclear Reactor Materials. Beijing: Atomic Energy Press, 1984: 222 |
| [8] | (陈鹤鸣,马春来,白新德. 核反应堆材料腐蚀及其防护. 北京: 原子能出版社, 1984: 222) |
| [9] | Luo W D, Yang B, Chen G L. Scr Mater, 2011; 64: 625 |
| [10] | Luo W D. Master Thesis, University of Science and Technology Beijing, 2010 |
| [10] | (罗文东. 北京科技大学硕士学位论文, 2010) |
| [11] | Wu X F, Zhang H F, Qiu K Q, Yang H C, Hu Z Q. Acta Metall Sin, 2003; 39: 555 |
| [11] | (武晓峰, 张海峰, 邱克强, 杨洪才, 胡壮麒, 金属学报, 2003; 39: 555) |
| [12] | Liu Y H, Wang G, Pan M X, Wang W H. Science, 2007; 315: 1385 |
| [13] | Wang W H. Prog Sci, 2013; 33: 177 |
| [13] | (汪卫华. 物理学进展, 2013; 33: 177) |
| [14] | Kondo R, Nomura S N, Tsutsumi Doi Y H, Hanawa T. Acta Biomater, 2011; 7: 4278 |
| [15] | Zhou F Y, Wang B L, Qiu K J, Lin W J, Li L, Wang Y B, Nie F L, Zheng Y F. Mater Sci Eng, 2012; C32: 851 |
| [16] | Wei J, Frankel P, Polatidis Blat E M, Ambard A, Comstock R J, Hallstadius L, Hudson D, Smith G D W, Grovenor C R M, Klaus M, Cottis R A, Lyon Preuss S M. Acta Mater, 2013; 61: 4200 |
| [17] | Inoue A. Proc Jpn Acad, 1997; 73B: 19 |
| [18] | Inoue A. Bulk Amorphous Alloys: Preparation and Fundamental Characteristics. Uetikon-Zurich: Trans Tech Publications, 1998: 3 |
| [19] | Suryanarayana C,Inoue A. Bulk Metallic Glass. New York: CRC Press, 2011: 67 |
| [20] | Chen H, He Y, Shiftlet G J, Poon S J. Nature, 1994; 367: 541 |
| [21] | Das J, Tang M B, Kim K B, Theissmann R, Baier F, Wang W H, Eckert J. Phys Rev Lett, 2005; 94: 205501 |
| [22] | Chen L Y, Fu Z D, Zhang G Q, Hao X P, Jiang Q, Wang X D, Cao Q P, Franz H, Liu Y G, Xie H S, Zhang S L, Wang B Y, Zeng Y W, Jiang J Z. Phys Rev Lett, 2008; 100: 075501 |
| [23] | Hui X, Liu S N, Pang S J, Zhuo L C, Zhang T, Chen G L, Liu Z K. Scr Mater, 2010; 63: 239 |
| [24] | Van den Beukel A, Sietsma J. Acta Metall Mater, 1990; 38: 383 |
| [25] | Slipenyuk A, Eckert J. Scr Mater, 2004; 50: 39 |
| [26] | Daniel B S S, Reger-Leonhard A, Heilmaier M, Eckert J, Schultz L. Mech Time-Depend Mater, 2002; 6: 193 |
| [27] | Flores K M, Sherer E, Bharathula A, Chen H, Jean Y C. Acta Mater, 2007; 55: 3403 |
| [28] | Li Y X. Master Thesis, University of Science and Technology Beijing, 2011 |
| [28] | (李宇翔. 北京科技大学硕士学位论文, 2011) |
/
| 〈 |
|
〉 |
