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首页> 外文期刊>Materials Science and Engineering >The effect of rare earth elements on the behaviour of magnesium-based alloys: Part 2 - recrystallisation and texture development
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The effect of rare earth elements on the behaviour of magnesium-based alloys: Part 2 - recrystallisation and texture development

机译：稀土元素对镁基合金行为的影响：第2部分-重结晶和织构发展

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摘要

The recrystallisation behaviour of two hot deformed magnesium alloys, AZ31 and Mg-1.5Gd, have been compared with particular emphasis on texture development. The alloy Mg-Gd, which contains the rare earth element gadolinium, statically recrystallised significantly faster than the conventional alloy AZ31. Despite faster recrystallisation kinetics, Mg-Gd developed the weaker recrystallisation texture associated with the addition of rare earth elements. It has been concluded that the weakening of recrystallisation texture that results from the addition of RE elements is not intrinsically linked with a reduction in the rate of recrystallisation. It is proposed that solute partitioning of RE elements to dislocations during deformation creates a microstructure from which weaker recrystallisation textures are favoured.
机译：比较了两种热变形镁合金AZ31和Mg-1.5Gd的再结晶行为，并特别强调了织构的发展。含有稀土元素g的Mg-Gd合金比传统的AZ31合金静态重结晶的速度明显更快。尽管重结晶动力学较快，但Mg-Gd的重结晶质地较弱，与稀土元素的添加有关。已经得出结论，由于添加RE元素而导致的再结晶织构的减弱与再结晶速率的降低没有内在联系。建议在变形过程中将RE元素进行溶质分配至位错，形成一种微结构，从中有利于获得较弱的重结晶织构。

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