Microstructural Variation and a Physical Mechanism Model for a Ti-55511 Alloy during Double-Stage Hot Deformation with Stepped Strain Rates in the β Region

• Published in: Materials Vol. 14; no. 21; p. 6371
• Main Authors: He, Dao-Guang, Su, Gang, Lin, Yong-Cheng, Jiang, Yu-Qiang, Li, Zhou, Chen, Zi-Jian, Yan, Xin-Tao, Xia, Yu-Chi, Xie, Yang-Chen
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 25.10.2021; MDPI
• Subjects: Artificial intelligence; Deformation; Dynamic recrystallization; High temperature; Hot pressing; Mathematical models; Microstructure; Nucleation; Strain rate; Titanium alloys; Titanium base alloys

The microstructural variation and high-temperature flow features of a Ti-55511 alloy in the β region are studied by utilizing double-stage compression with a stepped strain rate. The results demonstrate that the stresses in the latter stage of hot compression markedly reduce as the strain at the pre...