Abstract—

The effect of the temperature of plastic deformation performed by equal channel angular pressing on the structure and physical and mechanical properties of the age-hardenable Cu–Cr–Zr alloy has been studied. Plastic deformation results in the formation of an ultrafine-grained structure in some regions with an average grain size smaller than 1 µm, a supersaturated solid solution decomposition, and the precipitation of disperse particles. The fraction of the supersaturated solid solution which is decomposed is shown to increase with increasing deformation temperature. The density of microshear bands, the dislocation density, and the fraction of high-angle boundaries and the ultrafine-grained structure increase with increasing volume fraction of disperse particles.

中文翻译：

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变形温度对时效性Cu-Cr-Zr合金超细晶组织形成的影响

摘要-

研究了等通道角压对塑性变形温度的影响，对时效硬化型Cu-Cr-Zr合金的组织和物理机械性能产生了影响。塑性变形导致在某些区域形成平均粒径小于1 µm的超细结构，过饱和固溶体分解以及分散颗粒的沉淀。分解的过饱和固溶体的分数显示出随着变形温度的升高而增加。微剪切带的密度，位错密度，高角度边界分数和超细晶粒结构随分散颗粒体积分数的增加而增加。