The effect of multiple pulse treatment on the recrystallization behavior of Mg-3Al-1Zn alloy strip
The effect of multiple pulse treatment on the recrystallization behavior of Mg-3Al-1Zn alloy strip
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DOI：
10.1007/s00339-007-4007-8
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发表时间：
2007-05
期刊：
影响因子：
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通讯作者：
Zhihong Xu;G. Tang;Fei Ding;Shaoquan Tian;Haoyang Tian
中科院分区：
文献类型：
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作者：
Zhihong Xu;G. Tang;Fei Ding;Shaoquan Tian;Haoyang Tian
本文首次报道了多脉冲处理（MPT）在Mg-3Al-1 Zn（AZ 31）合金带材再结晶中的应用。令人惊讶和兴奋的是，与常规热处理相比，在相对较低的温度下，经受电脉冲处理的样品可以在10 μ s内快速获得完全再结晶状态。MPT还具有优异的力学性能和典型的韧性失效归因于超细晶显微组织。MPT再结晶的有利机制是热效应和非热效应的耦合作用，其中非热效应有效地激活了位错攀移。
The present study first reports the application of multiple pulse treatment (MPT) for recrystallizaion of Mg-3Al-1Zn (AZ31) alloy strip. It is surprising and exciting that the completed recrystallization state of sample subjected to the electropulsing can be obtained rapidly in ∼10 s at relatively lower temperatures compared with conventional heat treatment. MPT also features excellent mechanical property and typical ductile failure thanks to ultrafine grained microstructure. The favoring mechanism of recrystallization of MPT can be attributed to the coupled actions of the thermal and athermal effects, thereinto, the latter one activates dislocations climb effectively.