| 8090合金在超塑变形过程中的再结晶形核及其作用 |
| |
| 引用本文： | 刘志义,崔建忠.8090合金在超塑变形过程中的再结晶形核及其作用[J].宇航学报,1992(4):69-72. |
| |
| 作者姓名： | 刘志义 崔建忠 |
| |
| 作者单位： | 东北工学院，东北工学院，东北工学院 沈阳 110006，沈阳 110006，沈阳 110006 |
| |
| 摘 要： |
|
| 关 键 词： | 再结晶形核 铝锂合金 超塑性变形 |
RECRYSTALLIZATION NUCLEATION AND ITS ROLE IN THE SUPERPLASTIC DEFORMATION OF AL-Li ALLOY |
| |
| Liu Zhiyi Cui Jianzhong Bai Guangrun.RECRYSTALLIZATION NUCLEATION AND ITS ROLE IN THE SUPERPLASTIC DEFORMATION OF AL-Li ALLOY[J].Journal of Astronautics,1992(4):69-72. |
| |
| Authors: | Liu Zhiyi Cui Jianzhong Bai Guangrun |
| |
| Abstract: | Under the optium condition of superplastic deformation (T = 500++++++++++++++, ++++++++++++++++++i=3.33 + 10-3S-1) in Al-1.91 Li-1.25 Cu-0.46Mg-0.21Zr alloy, three kinds of recrystalliza-tion nucleation occurred: 1) nucleation by bulge of subgrain boundary, 2) nucleation by widening of subgrain boundary, 3) nucleation by bulge of high angle boundery. It is indicated that all these kinds of recrystallization nucleation release the stress concentration at triple junction led by grain boundary sliding. In addition,the first and the second of nucleation refine grains, but the last one causes grain growth. The recrystallization nucleation by bulge of high angle boundary is promoted by a large mount of particle present in the vicinity of grain boundary. |
| |
| Keywords: | Recrystallization nucleation Al-Li alloy Superplastcity |
| 本文献已被 CNKI 维普 等数据库收录！ |
