Understanding the precipitation mechanism of copper-bearing phases in Al-Mg-Si system during thermo-mechanical treatment
Understanding the precipitation mechanism of copper-bearing phases in Al-Mg-Si system during thermo-mechanical treatment
复制标题
了解Al-Mg-Si体系中热机械处理过程中含铜相的析出机制
DOI：
10.1016/j.jmst.2021.04.026
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发表时间：
2021
影响因子：
10.9
通讯作者：
Di Tie
中科院分区：
文献类型：
--
作者：
Hongmei Jin;Renguo Guan;Xianxiang Huang;Ying Fu;Jin Zhang;Xiaolin Chen;Yu Wang;Fei Gao;Di Tie
We modified the morphology and distribution of copper-bearing precipitates in an Al-Mg-Si-Cu alloy and obtained ultra-high comprehensive properties through a modified thermo-mechanical treatment composed of aging and cold deformation. The precipitate evolution and atomic structure was observed by employing atomic resolution high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM). Our results proved the existence of β′′/Q′ composite precipitates in rod-like morphology after aging treatment due to the inhibition of β′′ phase formation by copper atoms. We also revealed that the peak-aged phases transformed into in-situ reverse-transformed Guinier Preston zones (GP zones) during the deformation process. By the means of modifying the precipitates, we finally simultaneously obtained ultra-high strength (424.40 MPa) as well as favorable conductive properties (52.78%IACS), both of which surpassed three mainstream standards for high strength aluminum conductor.
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影响因子：
10.9
作者：
R. Guan;Yongfeng Shen;Zhanyong Zhao;Xiang-Jie Wang
通讯作者：
R. Guan;Yongfeng Shen;Zhanyong Zhao;Xiang-Jie Wang
影响因子：
4.5
作者：
Han, Y.;Shao, D.;Li, X. M.
通讯作者：
Li, X. M.
影响因子：
56.9
作者：
Legros, Marc;Dehm, Gerhard;Balk, T. John
通讯作者：
Balk, T. John
影响因子：
56.9
作者：
Sun, Wenwen;Zhu, Yuman;Hutchinson, Christopher
通讯作者：
Hutchinson, Christopher
DOI：
10.1007/s11661-011-0680-5
发表时间：
2011-04
期刊：
Metallurgical and Materials Transactions A
影响因子：
--
作者：
Wenchao Yang;Mingpu Wang;Yanlin Jia;Ruirong Zhang
通讯作者：
Wenchao Yang;Mingpu Wang;Yanlin Jia;Ruirong Zhang