- Tytuł:
- Study on Dynamic Recrystallization Models of 21-4N Heat Resistant Steel
- Autorzy:
-
Li, Yiming
Huang, Xiaomin
Ji, Hongchao
Li, Yaogang
Wang, Baoyu
Tang, Xuefeng - Powiązania:
- https://bibliotekanauki.pl/articles/2049422.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
21-4N
hot deformation
dynamic recrystallization
critical strain
volume fraction - Opis:
- The high-temperature deformation process and dynamic recrystallization (DRX) process of 21-4N were investigated under the conditions of the deformation temperature range of 1273~1453K, the strain rate range of 0.01~10s-1 and the deformation degree of 60% (the total deformation is 0.916) by using Gleeble-1500D thermal simulated test machine. The curves of stress-strain (σ – ε) were obtained, and the curves of work hardening rate (θ) and strain (ε) were obtained by taking derivative of σ – ε. The DRX critical strains under different conditions were determined by the curves of work hardening rate (θ – ε), and the DRX critical strain model was established. The peak strains of 21-4N were obtained by the curves of σ – ε, the relationship between peak stress (σp) and critical strain (εc) was determined, and the peak strain model was established. The DRX volume fraction models of 21-4N were established by using Avrami equation. The DRX grain size of 21-4N was calculated by Image Pro Plus 6.0, and its DRX grain size models were established.
- Źródło:
-
Archives of Metallurgy and Materials; 2021, 66, 1; 145-152
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł