Abstract
The present study deals with the hot compression behavior of Ti6242 alloy in the range of 700–1000 °C under 0.003–0.3 s−1 strain rates up to the logarithmic strain of 0.7. The occurrence of kinking/bending in transformed β, dynamic recrystallization (DRX), and subsequently the small amount of globularization in primary α phase are all considered responsible for the observed flow softening. However, the strain‐compensated constitutive equations as well as 3D activation energy and processing maps were used to further characterizing the dominant softening mechanism in various deformation conditions. Accordingly, the best processing window is established between 820 and 1000 °C under the low strain rate of 0.003 s−1.
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