Effect of cooling rate on the microstructure and microhardness of the CuZrAgAl alloy
Effect of cooling rate on the microstructure and microhardness of the CuZrAgAl alloy
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冷却速率对CuZrAgAl合金显微组织和显微硬度的影响
DOI：
10.1016/j.matchar.2012.04.016
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发表时间：
2012-08
影响因子：
4.7
通讯作者：
Kapelski G.
中科院分区：
文献类型：
--
作者：
Liu Y.;Bl;in J. J.;Suery M.;Kapelski G.
研究了冷却速度对Cu40Zr44Ag8Al8(at.%)合金显微组织和显微硬度的影响。用X射线衍射仪、光学显微镜和扫描电子显微镜结合能量色散X-射线能谱对晶相进行了表征，确定晶相为AlCu2Zr、Cu10Zr7和CuZr2。确定了其凝固顺序为：首先在棒材周边形成Cu10Zr7相，然后在棒材中心形成AlCu2Zr相，最后在贫铜区形成CuZr2晶体。通过显微硬度评价了晶体对Cu40Zr44Ag8Al8合金力学性能的影响。从显微硬度值来看，在低冷却速度(即9 mm)下，合金比在大冷却速度(即3 mm)下具有完全非晶态的合金更容易形成非晶态的非晶组织。这种不均匀结构是由于冷却速度较慢，晶相的形成引起非晶态基质成分的变化所致。
The effect of cooling rate on the microstructure and microhardness of the Cu40Zr44Ag8Al8(at.%) alloy has been studied. The crystalline phases were characterized by X-ray diffraction, optical microscopy and scanning electron microscopy with energy dispersive X-ray spectroscopy, and identified as AlCu2Zr, Cu10Zr7and CuZr2. The solidification sequence was established as following: the Cu10Zr7phase forms first in the periphery of the rod, then following with AlCu2Zr phase in the rod center and finally CuZr2crystals in Cu-depleted areas. The effect of crystals on the mechanical properties of the Cu40Zr44Ag8Al8alloy was also estimated through the microhardness. According to the value of microhardness, inhomogeneous structure of the amorphous matrix is more easily formed for the alloy in the low cooling rate (i.e., 9mm) as compared with the alloy with fully amorphous state in the large cooling rate (i.e., 3mm). This inhomogeneous structure was attributed to the composition change of amorphous matrix arising from the forming of crystalline phases due to the low cooling rate.
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影响因子：
3.6
作者：
Lincai Zhang;F. Jiang;Dehong Zhang;Lin He;Jun Sun;Jitang Fan;Zhefeng Zhang
通讯作者：
Lincai Zhang;F. Jiang;Dehong Zhang;Lin He;Jun Sun;Jitang Fan;Zhefeng Zhang
DOI：
10.1007/s11661-009-0087-8
发表时间：
2010-07-01
影响因子：
2.8
作者：
Louzguine-Luzgin, D. V.;Xie, G.;Inoue, A.
通讯作者：
Inoue, A.
Cu40Zr44Ag8Al8块体金属玻璃的高温变形
DOI：
10.1016/j.msea.2011.01.045
发表时间：
2011-04
影响因子：
6.4
作者：
Yong Liu;J.J. Bl;in;G. Kapelski,;Michel Suery
通讯作者：
Michel Suery
影响因子：
1.2
作者：
Tao Zhang;K. Kurosaka;A. Inoue
通讯作者：
Tao Zhang;K. Kurosaka;A. Inoue
Zr-(Cu,Ag)-Al块体金属玻璃
影响因子：
9.4
作者：
Jiang, Q. K.;Wang, X. D.;Jiang, J. Z.
通讯作者：
Jiang, J. Z.