High-temperature behavior of a cryomilled ultrafine-grained Al–7.5% Mg alloy
High-temperature behavior of a cryomilled ultrafine-grained Al–7.5% Mg alloy
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DOI：
10.1016/j.msea.2005.08.046
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发表时间：
2005-11
期刊：
影响因子：
6.4
通讯作者：
B. Han;E. Lavernia
中科院分区：
文献类型：
--
作者：
B. Han;E. Lavernia
本文研究了一种超细晶Al-7.5%Mg合金在298-673K温度下的拉伸行为。铝镁合金表现出与其他机械合金化铝合金相似的本征行为。高温试验后，Al-Mg合金的显微组织表现出较高的热稳定性，且晶粒长大不明显。结合相关的高温变形机制，讨论了超细晶Al-7.5%Mg的高温变形行为。
In the present study, the tensile behavior at temperatures of 298–673K of an ultrafine-grained Al–7.5% Mg alloy processed via consolidation of cryomilled powders was investigated. The Al–Mg alloy exhibits an intrinsic behavior that is similar to that of other mechanically alloyed aluminum alloys. The microstructure of the Al–Mg alloy shows a high thermal stability with insignificant grain growth after high-temperature testing. The deformation behavior of the ultrafine-grained Al–7.5% Mg was discussed in the context of relevant deformation mechanisms at elevated temperatures.