Enhanced bake-hardening response of an Al-Mg-Si-Cu alloy with Zn addition
Enhanced bake-hardening response of an Al-Mg-Si-Cu alloy with Zn addition
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添加 Zn 增强 Al-Mg-Si-Cu 合金的烘烤硬化响应
DOI：
10.1016/j.matchemphys.2015.07.033
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发表时间：
2015-07-15
影响因子：
4.6
通讯作者：
Zhuang, L. Z.
中科院分区：
文献类型：
--
作者：
Guo, M. X.;Sha, G.;Zhuang, L. Z.
这项研究报告说，Zn添加大大增强了Al-Mg-Si-Cu合金的烘焙响应。涂料烘烤后，预元合金表现出135 MPa的高强度增量。差异扫描量热法，原子探针断层扫描和高分辨率透射电子显微镜表明，Zn添加和预衰老对溶质纳米结构的形成具有显着影响。 Zn原子分为溶质簇/GP区域，并减少合金中β降水的活化能。（c）2015 Elsevier B.V.保留所有权利。
This study reports that Zn addition greatly enhances the bake-hardening response of an Al-Mg-Si-Cu alloy. The pre-aged alloy exhibits a high strength increment of 135 MPa after paint baking. Differential scanning calorimetry, atom probe tomography and high-resolution transmission electron microscopy reveal that Zn addition and pre-aging have significant effects on the solute nanostructure formation. Zn atoms partition into solute clusters/GP zones, and reduce the activation energy of beta" precipitation in the alloy. (C) 2015 Elsevier B.V. All rights reserved.