Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1576989 | Materials Science and Engineering: A | 2012 | 8 Pages |
Abstract
Effects of the processing parameters on the flow stress behavior and the microstructural revolution are investigated in the hot compression of Ti40 alloy. The experimental results show that the flow softening occurring at high strain rate, is associated with deformation heating, flow instability, cracking and DRX, while that occurring at low strain rate is contributed to DR and DRX. Effects of processing parameters on microstructural revolution are analyzed. At low temperature (<950 °C) and low reduction (<30%), DRX scarcely occurs, while oxidation cracking is grievous at the temperature of 1100 °C. Moreover, the recrystallized grain size decreases with the increasing of strain rate. Furthermore, flow instability occurs at the reduction of 70% and strain rates of 1 and 10 sâ1. It indicates the complicate effects of processing parameters on microstructural revolution, and is helpful for the control of microstructure and optimization of processing parameters.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Yanchun Zhu, Weidong Zeng, Yongqing Zhao, Ying Shu, Xuemin Zhang,