中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 13 No. 2 April 2003 |
Aging transformation in
Cu-3.2Ni-0.75Si alloy
Cu-3.2Ni-0.75Si alloy
（1. Institute of Materials Science and Engineering,
Xi′an Jiaotong University, Xi′an 710049, China
2. Department of Materials Engineering,
Luoyang Institute of Technology, Luoyang 471039, China）
Abstract:The aging processes in Cu-3.2Ni-0.75Si alloy were examined by means of transmission electron microscope , X-ray diffractometer and high-resolution transmission electron microscopy. It is concluded that before the formation of Ni2Si phase there exist continuous phase transformation processes, namely ordering, spinodal decomposition. Thereafter, the solute-rich zones form Ni2Si phase which is coherent with the matrix.
Key words: Cu-Ni-Si alloy; transformation; aging; spinodal decomposition; ordering
