Thixoforming : Semi-solid Metal Processing

Load (kN)
7
6
5
4
3
2
1
0
0
7.5
Conclusion
DT = 0 °C
DT = 50 °C
DT = 80 °C
10
20
Displacement (mm)
Figure 7.9 Simulated load–displacement curves for nonisothermal
compression tests for the same initial solid fraction
but for different temperature losses labelled DT.
Solid fraction
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0
Overall solid
fraction
Active solid fraction
DT = 0 °C
DT = 50 °C
DT = 80 °C
10
Displacement (mm)
Figure 7.10 Simulated overall solid fraction and active solid
fraction during non-isothermal compressions test having
temperature losses of 0, 50 and 80 C.
20
A new modelling based on a micro–macro approach is proposed to describe
the steady-state but also transient, isothermal and non-isothermal behaviour of
30
30
40
7.5 Conclusionj235
40