An Internal-State-Variable-Based Continuous Dynamic Recrystallization Model for Thermally Deformed TC18 Alloy

• Published in: Materials Vol. 17; no. 16; p. 4026
• Main Authors: Wu, Gui-Cheng, Lin, Yong-Cheng, Wan, Miao, Zeng, Ning-Fu, Zhang, Song, Zhang, Hui-Jie, Chen, Ming-Song, Jiang, Yu-Qiang
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 13.08.2024; MDPI
• Subjects: Alloys; Aluminum; Behavior; Continuity (mathematics); Correlation coefficients; Crystal dislocations; Crystallites; Deformation; Dislocation density; Dynamic recrystallization; Error analysis; Grain boundaries; Grain size; Grain sub boundaries; Hot forming; Microstructure; Misalignment; Root-mean-square errors; Specialty metals industry; Stacking fault energy; State variable; Substructures (crystalline); Temperature; Titanium; Titanium base alloys; True stress; Yield strength; continuous dynamic recrystallization; microstructure; TC18 alloy; thermomechanical processing; internal state variables

Continuous dynamic recrystallization (CDRX) is widely acknowledged to occur during hot forming and plays a significant role in microstructure development in alloys with moderate to high stacking fault energy. In this work, the flow stress and CDRX behaviors of the TC18 alloy subjected to hot deforma...