Effect of ECAP on the Microstructure and Mechanical Properties of a Rolled Mg-2Y-0.6Nd-0.6Zr Magnesium Alloy
Effect of ECAP on the Microstructure and Mechanical Properties of a Rolled Mg-2Y-0.6Nd-0.6Zr Magnesium Alloy
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ECAP对轧制Mg-2Y-0.6Nd-0.6Zr镁合金显微组织和力学性能的影响
DOI：
10.3390/cryst9110586
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发表时间：
2019-11
期刊：
影响因子：
2.7
通讯作者：
Tian Liang
中科院分区：
文献类型：
--
作者：
Shi Xiaofang;Li Wei;Hu Weiwei;Tan Yun;Zhang Zhenglai;Tian Liang
采用棒材轧制和等径角挤压（ECAP）工艺制备了细晶Mg-2 Y-0. 6 Nd-0. 6 Zr合金。采用光学显微镜、扫描电镜、电子背散射衍射和室温拉伸试验研究了ECAP变形对Mg-2 Y-0. 6 Nd-0. 6 Zr合金轧制态组织和力学性能的影响。结果表明，Mg-2 Y-0.6Nd-0.6Zr合金经轧制后具有较高的强度，但塑性较差。随着ECAP道次的增加，合金的晶粒尺寸逐渐减小，基面织构逐渐减弱。合金的极限抗拉强度先升高后降低，屈服强度逐渐降低，塑性不断提高。经过4道次ECAP变形后，合金的平均晶粒尺寸从11.2 μm减小到1.87 μm，合金获得了优异的综合力学性能。其强度与轧制态相比略有下降，但塑性大大提高。
A fine-grained Mg-2Y-0.6Nd-0.6Zr alloy was processed by bar-rolling and equal-channel angular pressing (ECAP). The effect of ECAP on the microstructure and mechanical properties of rolled Mg-2Y-0.6Nd-0.6Zr alloy was investigated by optical microscopy, scanning electron microscopy, electron backscattered diffraction and a room temperature tensile test. The results show that the Mg-2Y-0.6Nd-0.6Zr alloy obtained high strength and poor plasticity after rolling. As the number of ECAP passes increased, the grain size of the alloy gradually reduced and the texture of the basal plane gradually weakened. The ultimate tensile strength of the alloy first increased and then decreased, the yield strength gradually decreased, and the plasticity continuously increased. After four passes of ECAP, the average grain size decreased from 11.2 µm to 1.87 µm, and the alloy obtained excellent comprehensive mechanical properties. Its strength was slightly reduced compared to the as-rolled alloy, but the plasticity was greatly increased.
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影响因子：
6.3
作者：
Aghion, E;Bronfin, B;Eliezer, D
通讯作者：
Eliezer, D
DOI：
10.1016/s1003-6326(10)60545-6
发表时间：
2010-07
期刊：
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影响因子：
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影响因子：
6
作者：
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通讯作者：
Kao, P. W.
DOI：
10.1016/j.msea.2013.11.042
发表时间：
2014-01-21
影响因子：
6.4
作者：
Jahadi, Ramin;Sedighi, Mohammad;Jahed, Hamid
通讯作者：
Jahed, Hamid
DOI：
10.1016/s0921-5093(98)00750-3
发表时间：
1998-12
影响因子：
6.4
作者：
M. Furukawa;Y. Iwahashi;Z. Horita;M. Nemoto;T. Langdon
通讯作者：
M. Furukawa;Y. Iwahashi;Z. Horita;M. Nemoto;T. Langdon