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高Cu高强Zr基块体非晶合金的制备与力学性能 刘雄军1,张翠梅1,惠希东1,陈国良1 (1.北京科技大学,新金属材料国家重点实验室,北京,100083) 摘要:利用铜模铸造的方法制备了(Zr41.2Ti13.8Ni10Be22.5)1-x/87.5Cu12.5+x(x=1.6,6,11.2)块体非晶合金及其复相组织,分析了合金的相组成,热稳定性,力学性能及断口形貌.结果表明:随着铜含量的不断增多,尽管过冷液相区(ΔTx)逐渐增大,但非晶形成能力却不断下降.当合金的铜含量提高到18.5%时,非晶合金的压缩断裂强度达到2.2 Gpa,进一步增加铜含量到23.7%,压缩强度出现下降趋势. 关键词:Zf基块体非晶合金; 玻璃形成能力; 压缩断裂强度; Zr-based bulk metallic glasses; glass forming ability; compressive......
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of passive film in the NaCl solution, and the inhomogeneous distributed pits on the surface of the Zr-based bulk metallic glass are relatively smaller than those of the Ti-based one, which is agreement... Electrochemical corrosion properties of Zr- and Ti-based bulk metallic glasses KOU Hong-chao1, LI Yong1, ZHANG Tie-bang1, LI Jian2, LI Jin-shan1 1. State Key Laboratory of Solidification......
. [11] GREER A L. Materials science-confusion by design [J]. Nature, 1993, 366: 303-304 [12] TARIQ N H, HASAN B A, AKHTER J I, SHAIKH M A. Evolution of loops in ductile Zr-based bulk metallic glass..., KUROSAKA K. High-strength Cu-based bulk glassy alloys in Cu-Zr-Ti and Cu-Hf-Ti ternary systems [J]. Acta Mater, 2001, 29: 2645-2652. [3] MA H, SHI L L, XU J, LI Y, MA E. Discovering inch-diameter metallic......
beyond the glass transition temperature (Tg). Zr-based multicomponent bulk metallic glasses have high glass forming ability and exhibit a large supercooled liquid region (ΔTx, defined as the temperature... Influence of amorphous degree on crystallization kinetics of Zr60Al15Ni25 bulk metallic glass MA Qiang, YAN Zhi-jie, HAO Wei-Xin, HU Yong School of Materials Science and Engineering, Taiyuan......
]. Physics Review Letter, 2005, 94: 205502. [19] ZHANG B, WANG R J, ZHAO D Q, PAN M X, WANG W H. Properties of Ce-based bulk metallic glass-forming alloys[J]. Physical Review B, 2004,70: 224208. [20] ZHAO Z... A. Ultra-low glass transition temperatures in Ce-Based bulk metallic glasses [J]. Materials Transactions, JIM, 2005, 46 (8): 1857-1860. [22] LU Z P, LIU C P. Glass formation criterion for various glass......
Mater, 2000, 42(7): 667-673. [21] Dai C L, Guo H, Shen Y, Li Y, Ma E, Xu J. A new centimeter-diameter Cu-based bulk metallic glass [J]. Scripta Mater, 2006, 54: 1403-1408. [22] Ji X L, Pan Y, Cai A H. The effect of Al on glass forming ability of Cu-based bulk metallic glasses [J]. J Cent South Univ Technol, 2007, 14(S2): 20-23. ......
反应与扩散[J]. 稀有金属材料与工程, 2005, 34(7): 1102-1105.WANG Mei-ling, HUI Xi-dong, KOU Hong-chao, CHEN Guo-liang. The interface reaction and diffusion of tungsten fiber/Zr-based bulk metallic-glass matrix... and splitting. The delamination of tungsten fibers are also found in the matrix. The typical melt and thermal-softening characteristic of Zr-based metallic glass matrix are found in the dynamic compressive......
by the decrease of the glass formation enthalpy with Al additions. Key words:bulk metallic glass; glass forming ability; additions; rare earths; [全文内容正在添加中] ... Institute of Technology, Zhengzhou 450007, China) Abstract:Nd55-xAl10+xCo20Fe15 (x=0, 5, 10) bulk glass-forming alloys with distinct glass transition in differential scanning calorimetry (DSC) traces were......
Interfacial characteristics and dynamic mechanical properties of Wf/Zr-based metallic glass matrix composites MA Wei-feng(马卫锋), KOU Hong-chao(寇宏超), CHEN Chun-sheng(陈春生), LI Jin-shan(李金山), HU Rui... work, the Wf/Zr-based metallic glass matrix composites were prepared by melt infiltration casting at different infiltration temperature and same infiltration time. The relationship between......
