Static coarsening behavior of equiaxed α phase in Ti−8Al−1Mo−1V alloy
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
Autoren
Organisationseinheiten
Externe Organisationseinheiten
- Erich-Schmid-Institut für Materialwissenschaft der Österreichischen Akademie der Wissenschaften
- Taiyuan University of Technology
- Taiyuan University of Technology
Abstract
To get a deep understanding of the evolution behavior of equiaxed α phase in Ti−8Al−1Mo−1V alloy during annealing, its static coarsening mechanism was studied based on the calculations of coarsening exponent n and the activation energy for α boundary migration. The result of n=6 indicates a special coarsening mechanism of equiaxed α phase. The activation energy for α boundary migration is calculated to be 138 kJ/mol, which is close to the activation energy for grain growth of pure α-Ti. It is revealed that the coarsening of equiaxed α can be mainly attributed to the self-diffusion of Ti atoms across the α/α boundaries. Based on the experimental findings, a static coarsening kinetics model of equiaxed α grains in the α+β field is established. At last, the effects of the coarsening behavior of equiaxed α on tensile properties were studied.
Details
Originalsprache | Englisch |
---|---|
Seiten (von - bis) | 1628-1640 |
Seitenumfang | 13 |
Fachzeitschrift | Transactions of Nonferrous Metals Society of China (English Edition) |
Jahrgang | 31.2021 |
Ausgabenummer | 6 |
DOIs | |
Status | Veröffentlicht - 28 Juni 2021 |