中文摘要：

本文以Al-Pd-Co复杂合金相ξ＇为研究对象,应用FIB技术以及透射电镜,对其室温下的纳米压痕变形微观结构进行了分析表征。结果表明,不同于传统材料的变形,ξ＇相压痕下的变形结构以形成的特殊变形带结构为主要特征。这种变形带由高密度缺陷的集合组成,其在形变过程中可协调局域变形,分割晶粒,且其拓展可以选择沿某些晶体学方位优先开动。

英文摘要：

In this paper,the room-temperature nanoindentation-induced deformation structure in the Al-Pd-C.complex alloy phase has been studied by a combination of FIB fabrication technique and electron microscopy. The results show that,unlike the case in a traditional material,the evolution of deformation structure beneath an indent in the phase is characterized by the formation of a kind of special deformation band. This kind of deformation band, which can propagate preferentially along some crystallographic planes, is constructed by coupling deformation defects of high density, and its generation and extension are responsible for accommodating plastic strain and for subdividing grain as well during the indentation process.