Abstract
Through phase transformation kinetic analysis and experimental observation, the δ/γ transformation occurring in the non-equilibrium peritectic Fe-4.33at.%Ni alloys was systematically investigated. According to JMA solid-state transformation kinetic theory, the Time-Temperature-Transformation (TTT) curves of the δ/γ transformation in peritectic Fe-Ni alloy were calculated. On this basis, the physical correlation between the δ/γ transformation and the initial undercooling of melt (ΔT) was elucidated. The results indicate that the change of ΔT can alter not only the overall δ/γ transformation pathways but also the transformation fraction with respect to each transformation mechanism.
| Original language | English |
|---|---|
| Pages (from-to) | 421-431 |
| Number of pages | 11 |
| Journal | Science in China, Series G: Physics, Mechanics and Astronomy |
| Volume | 50 |
| Issue number | 4 |
| DOIs | |
| State | Published - Aug 2007 |
Keywords
- δ/γ transformation
- Fe-Ni alloy
- Non-equilibrium solidification
- Peritectic reaction
- Undercooling
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