A heat-treatable Mg-Al-Ca-Mn-Zn sheet alloy with good room temperature formability
A heat-treatable Mg-Al-Ca-Mn-Zn sheet alloy with good room temperature formability
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DOI：
10.1016/j.scriptamat.2017.05.034
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发表时间：
2017-09-01
影响因子：
6
通讯作者：
Hono, K.
中科院分区：
文献类型：
--
作者：
Bian, M. Z.;Sasaki, T. T.;Hono, K.
一种新开发的镁片合金Mg-1.1Al-03Ca-0.2Mn-0.3Zn (at。%)，在固溶处理（T4）条件下，由于微量Zn的加入使基体织构变弱，其指数Erichsen值较大，为7.7 mm。随后在200℃下人工时效1 h (T6)，将0.2%的抗压强度从144 MPa显著提高到204 MPa。T6处理强度的提高与Mg基体基面上密集分布的单原子层Guinier-Preston区有关。(C) 2017材料学报Elsevier Ltd.出版。版权所有。
A newly developed magnesium sheet alloy, Mg-1.1Al-03Ca-0.2Mn-0.3Zn (at.%), shows a large Index Erichsen value of 7.7 mm in a solution treated (T4) condition due to a weak basal texture developed by the trace addition of Zn. Subsequent artificial aging at 200 degrees C for 1 h (T6) significantly increases the 0.2% proof strength from 144 MPa to 204 MPa. This improvement in strength by the T6 treatment is associated with a dense distribution of monoatomic layer Guinier-Preston zones on the basal planes of the Mg matrix. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.