Synergetic strengthening far beyond rule of mixtures in gradient structured aluminum rod
Synergetic strengthening far beyond rule of mixtures in gradient structured aluminum rod
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DOI：
10.1016/j.scriptamat.2016.05.006
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发表时间：
2016-09-01
影响因子：
6
通讯作者：
Mathaudhu, Suveen
中科院分区：
文献类型：
--
作者：
Moering, Jordan;Ma, Xiaolong;Mathaudhu, Suveen
梯度结构金属已被报道显示出高强度和高延展性。本文报道了梯度结构铝合金棒的强度远高于用混合规则计算的强度值。梯度结构圆形试样中的力学不相容性产生了三维应力状态、超常的强化和良好的延展性。在测试过程中形成了面外{111}线织构，这有助于应力状态和力学行为的演变。(C)2016爱思唯尔有限公司版权所有
Gradient structured metals have been reported to exhibit high strength and high ductility. Here we report that the strength of gradient structured aluminum rod is much higher than the value calculated using the rule of mixtures. The mechanical incompatibility in the gradient structured round sample produced 3D stress states, extraordinary strengthening and good ductility. An out of plane {111) wire texture was developed during the testing, which contributes to the evolution of the stress state and mechanical behavior. (C) 2016 Elsevier Ltd. All rights reserved.