Quantitative Characterization of Microstructure in Copper Processed by Equal-Channel Angular Pressing

摘要：

Experiments were conducted on extremely coarse-grained pure copper to evaluate the effect of equal-channel angular pressing (ECAP) on microstructure evolution in the as-pressed state and after creep exposure using various stereological methods. The microstructure formed by severe plastic deformation is an unusual structure which can be hardly characterized only by the mean grain size especially after low number of ECAP passes. The purpose of this paper is a detailed examination of (sub)boundaries and grain boundaries in the microstructures of the pressed material. The inhomogeneity of deformed microstructures is also evaluated. The detailed description of ECAP microstructures should contribute to the better understanding of mechanical properties of the pressed materials.

作者: Petr Krai Jifi Dvorak Marie Kvapilova Milan Svoboda Viktor Benes Petr Ponizil Ondrej Sedivy Vaclav Sklenicka

作者单位: Institute of Physics of Materials,Academy of Sciences of the Czech Republic,Zizkova 22,CZ-616 62 Brn Department of Probability and Statistics,Faculty of Mathematics and Physics,Charles University,Sokol Department of Physics and Material Engineering,Faculty of Technology,Tomas Bata University in Zlin,C

会议类型: 国际会议

会议名称: 5th International Conference on Nanomaterials by Severe Plastic Deformation(第五届剧烈塑性变形纳米材料国际会议)

会议地点: 南京

会议语种:英文

页码: 235-240

在线出版日期: 2011-03-01（万方平台首次上网日期，不代表论文的发表时间）