摘要
对大变形制备的Cu-Cr原位复合材料的相界面进行HRTEM分析。结果表明:在Cu/Cu界面观察到两种界面衬度,即完全共格和错配位错衬度;Cu/Cr界面观察到完全共格和波纹图衬度。且发现在应变量η=6.43时,Cu/Cr界面中的Cr侧通过晶内畸变位错调节与基体的应变差异,保持界面的共格状态。
The structure of phase interface was investigated by HRTEM for the heavily cold deformed Cu-Cr in-situ composites. The results show that two kinds of interface contrast, periodic misfit dislocations and coherent interface contrast, are observed for Cu/Cu interface. The interfaces of Cu/Cr are coherent and show more pattern contrast. The aberrance dislocation in Cr side fiber of Cu/Cr interface generated to maintain compatibility between the Cu and Cr phases controls the coherent interface.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2013年第1期11-15,共5页
Transactions of Materials and Heat Treatment
基金
上海市科委基础研究重点项目(10JC1411800)
上海市教委创新项目(11YZ112)
上海市教育委员会重点学科建设项目(J50503)
