Effect of grain size on prismatic slip in Mg-3Al-1Zn alloy
Effect of grain size on prismatic slip in Mg-3Al-1Zn alloy
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DOI：
10.1016/j.scriptamat.2012.05.017
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发表时间：
2012-09-01
影响因子：
6
通讯作者：
Hammond, V. H.
中科院分区：
文献类型：
--
作者：
Razavi, S. M.;Foley, D. C.;Hammond, V. H.
通过多温度等通道转角加工，使镁3Al-1Zn镁合金的晶粒度从33微米到350 nm有系统地变化，同时保持晶体织构基本不变。几乎相同的织构允许大多数柱状滑移在拉伸中被激活，从而评估了颗粒尺寸对柱状滑移的影响。当材料的平均晶粒度为350 nm，延伸率为13%时，材料的最大拉伸屈服强度为385 Mpa，最大抗拉强度为455 Mpa。(C)2012 Acta Materialia Inc.由爱思唯尔有限公司出版。保留所有权利。
The grain size of Mg-3Al-1Zn magnesium alloy was systematically varied from 33 mu m down to 350 nm, while keeping the crystallographic texture nearly constant, via multi-temperature equal-channel angular processing. Nearly the same texture allowed the activation of mostly prismatic slip in tension and thus evaluation of the effect of grain size on prismatic slip. The maximum tensile yield strength of 385 MPa and ultimate tensile strength of 455 MPa were achieved in materials with an average grain size of 350 nm, accompanied with 13% ductility. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.