Atomic Scale Investigation of Impurity 3D Distribution in Nanocrystalline Ni Processed by SPD

摘要：

Some nanocrystaline Ni was prepared by repeated cold rolling with intermediate folding (F&R). The material was then processed by High Pressure Torsion (HPT) to study the grain evolution under additional Severe Plastic Deformation (SPD). Microstructures were characterized by Transmission Electron Microscopy (TEM) and the impurity distribution was analyzed by Atom Probe Tomography (APT). In this paper, we discuss about the influence of impurities on the grain growth during HPT and on the grain size reduction mechanism during SPD.

作者: Xavier Sauvage Gerhard Wilde Ruslan Valiev

作者单位: University of Rouen,CNRS UMR 6634,Groupe de Physique des Materiaux,Faculte des Sciences,BP12,76801 S lnstitute of Materials Physics,University of Munster,Munster,Germany lnstitute for Physics of Advanced Materials,Ufa State Aviation Technical University,K.Marx 12,Ufa 45

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: 169-174

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）