| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7979917 | Materials Science and Engineering: A | 2014 | 9 Pages |
Abstract
The high-temperature deformation behaviors of Ti-5Al-5Mo-5V-1Cr-1Fe alloy were investigated through the isothermal compression experiment. The dislocation evolution in the working-hardening stage has been analyzed and the corresponding constitutive model has been constructed. The dynamic softening mechanism has been identified with the relationship between the saturated dislocation density and dynamic recrystallization (DRX) critical density. The dependence on deformation parameters has been discussed and a concept of critical strain rate εÌC has been proposed. A dynamic softening map has been designed to predict the corresponding softening behaviors under certain deformation conditions. The constitutive model based on dislocation evolution has been extended to overall deformation incorporating dynamic softening behaviors and their deviations have been explained by introducing the processing map.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Houquan Liang, Hongzhen Guo, Yang Nan, Chun Qin, Xiaona Peng, Jingli Zhang,