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首页> 外文期刊>Journal of Materials Engineering and Performance >Hot Deformation and Dynamic Recrystallization Behavior of the Cu-Cr-Zr-Y Alloy
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Hot Deformation and Dynamic Recrystallization Behavior of the Cu-Cr-Zr-Y Alloy

机译：Cu-Cr-Zr-Y合金的热变形和动态再结晶行为

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摘要

To study the workability and to optimize the hot deformation processing parameters of the Cu-Cr-Zr-Y alloy, the strain hardening effect and dynamic softening behavior of the Cu-Cr-Zr-Y alloy were investigated. The flow stress increases with the strain rate and stress decreases with deformation temperature. The critical conditions, including the critical strain and stress for the occurrence of dynamic recrystallization, were determined based on the alloy strain hardening rate. The critical stress related to the onset of dynamic recrystallization decreases with temperature. The evolution of DRX microstructure strongly depends on the deformation temperature and the strain rate. Dynamic recrystallization appears at high temperatures and low strain rates. The addition of Y can refine the grain and effectively accelerate dynamic recrystallization. Dislocation generation and multiplication are the main hot deformation mechanisms for the alloy. The deformation temperature increase and the strain rate decrease can promote dynamic recrystallization of the alloy.
机译：为了研究Cu-Cr-Zr-Y合金的可加工性并优化其热变形工艺参数，研究了Cu-Cr-Zr-Y合金的应变硬化效应和动态软化行为。流动应力随应变率而增加，应力随变形温度而减小。基于合金应变硬化速率，确定了包括动态再结晶发生的临界应变和应力在内的临界条件。与动态再结晶的开始有关的临界应力随温度降低。 DRX微观结构的演变在很大程度上取决于变形温度和应变率。动态重结晶出现在高温和低应变速率下。 Y的添加可以细化晶粒并有效地加速动态再结晶。位错的产生和倍增是合金的主要热变形机制。变形温度的升高和应变速率的降低可以促进合金的动态再结晶。

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