Project (50804018) supported by the National Natural Science Foundation of China;Project (ZDS2010015C) supported by Key Lab of Advanced Materials in Rare and Precious and Non-ferrous Metals, Ministry of Education, KMUST, China;Project (2010DH025) supported by Yunnan Province Construction Plans of Scientific and Technological Conditions, China
The initial copper with large grain sizes of 60-100 μm was processed by six passes asymmetrical accumulative rolling-bond (AARB) and annealing, the ultra-fine-grained (UFG) copper with grain size of 200 nm was ob...
Projects(50804018,50564005)supported by the National Natural Science Foundation of China;Project(2003E0003Z)supported by the Key Science Foundation of Yunnan Province,China;Project(08Y0055)supported by Scientific Research Fund of Yunnan Provincial Education Department,China;Project(2008-055)supported by Talents Cultivation Foundation of Kunming University of Science and Technology,China
Copper sheet with grain size of 30-60μm was processed by plastic deformation of asymmetrical accumulative rolling-bonding(AARB)with the strain of 3.2.The effects of annealing temperature and time on microstructural e...