Glass forming ability, non-isothermal crystallization kinetics, and mechanical property of Zr61.5Al10.7Cu13.65Ni14.15 metallic glass
Glass forming ability, non-isothermal crystallization kinetics, and mechanical property of Zr61.5Al10.7Cu13.65Ni14.15 metallic glass
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DOI：
10.1016/j.jallcom.2009.10.125
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发表时间：
2010-02
影响因子：
6.2
通讯作者：
Cai Anhui;Cai Anhui;W. An;Yun Luo;T. L. Li;Xiao Song Li;Xunhui Xiong;Y. Liu
中科院分区：
文献类型：
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作者：
Cai Anhui;Cai Anhui;W. An;Yun Luo;T. L. Li;Xiao Song Li;Xunhui Xiong;Y. Liu
研究了zr61.5 al10.7 cu13.65 ni14.15玻璃成形合金的玻璃成形能力（GFA）、热稳定性、非等温结晶动力学和力学性能。其最大玻璃成形尺寸可达5.5mm，临界冷却速率小于40Ks−1。玻璃化转变的表观活化能Eg、起始结晶的表观活化能Ex、结晶峰的表观活化能Epare分别为214.56±16.14、267.42±9.36、305.69±7.31kJmol−1。脆性参数m较小，约为17，表明其热力学稳定性和GFA较好。其弹性应变极限为2.73%，抗压强度为1.81GPa，杨氏模量为70.47GPa。其v型断裂模式不同于其它大块金属玻璃。
The glass forming ability (GFA), thermal stability, non-isothermal crystallization kinetics, and mechanical property of Zr61.5Al10.7Cu13.65Ni14.15glass forming alloy were investigated. Its maximum glass forming dimension reaches up to 5.5mm and its critical cooling rate is less than 40Ks−1. The apparent activation energies for glass transition Eg, onset crystallization Ex, and crystallization peak Epare 214.56±16.14, 267.42±9.36, and 305.69±7.31kJmol−1, respectively. Small fragility parameter m about 17 indicates its better thermodynamic stability and GFA. In addition, its elastic strain limit, compressive strength, and Young's modulus are 2.73%, 1.81GPa, and 70.47GPa, respectively. Its V-shape fracture mode is different form other bulk metallic glasses.