Abstract
The hot deformation characteristics of Ti40 alloy were studied in the temperature range of 900-1100°C, the maximum deformation degree of 60% and strain rate range of 0.01-10 s-1 with Gleeble 1500 thermal simulator. Based on the results obtained from experiment, a constitutive relationship model of Ti40 alloy was established by the fuzzy-neural network and compared with the experimental result. The results indicate that the method is feasible to construct a constitutive relationship model for this alloy and high in the degree of fitting, Simultaneously, the complicated nonlinear relationship of thermodynamic parameters can be well described by the network model, making up for the limitations which traditional regression cannot reflect the whole deformation process. This method is not only a wide prospect of application but also an effective way to establish the constitutive relationship model of titanium alloys.
| Original language | English |
|---|---|
| Pages (from-to) | 1971-1976 |
| Number of pages | 6 |
| Journal | Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals |
| Volume | 20 |
| Issue number | 10 |
| State | Published - Oct 2010 |
Keywords
- Constitutive relationship
- Deformation behavior
- Fuzzy-neural network
- Ti40 alloy