Abstract
DSC (Differential Scanning Calorimetric) techniques were used to investigate the kinetics of microstructure transformation of Al-Zn-Mg-Cu-Li alloy during aging at 393 K, 24 h and 393 K, 3.5 h+433 K, 12 h. The kinetics parameters for GP zones and η′ phase transformation were calculated by using Avrami-Johnson-Mehl(AJM) equation, and the kinetic expresses about both above microstructure transformation are further gained. On the basis of TTT curves, the kinetic expresses were modified to get the mathematic modes of TTT curves. It is prove that the mathematic modes are agreement with trial results.
| Original language | English |
|---|---|
| Pages (from-to) | 1348-1351 |
| Number of pages | 4 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 37 |
| Issue number | 8 |
| State | Published - Aug 2008 |
Keywords
- η′ phase
- Al-Zn-Mg-Cu-Li alloy
- GP zone
- Kinetics
- TTT curves