Ultrafine grained and nanostructured materials have drawn significant attention due to their unusual mechanical behavior. The purpose of this research was to study the mechanical properties and microstructural evolution of nanocrystalline copper obtained through a bottom-up procedure of nanoparticle consolidation by equal channel angular pressing (ECAP). ECAP was approved to be a proper approach to produce comparatively big nanocrystalline consolidates including acceptable mechanical properties. The effects of ECAP pass numbers on consolidation achievement were also assessed. The quite large strains observed in the samples were associated with the bimodal distribution condition of grain sizes. The present work reveals that ECAP consolidation of nanoparticles presents a novel opportunity to investigate the mechanical response of nanostructured metals and alloys moreover it gives a chance to the production of unique kinds of bulk materials for useful purposes.

超细晶粒和纳米结构材料因其异常的机械性能而备受关注。这项研究的目的是研究通过等通道角挤压（ECAP）通过自下而上的纳米颗粒固结过程获得的纳米晶铜的力学性能和微观结构演变。ECAP被批准为生产包括可接受的机械性能在内的较大纳米晶体固结体的合适方法。还评估了ECAP通过次数对巩固成绩的影响。样品中观察到的相当大的应变与晶粒尺寸的双峰分布条件有关。