Hot Deformation Behavior and Mechanism of Alloy Inconel 625
The hot deformation behavior and microstructure of rolled Inconel 625 alloy have been studied from 930°C to 1180°C, and at strain rate from 10 s-1 to 80 s-1, respectively. The results indicate that, as deformation temperature rises, both peak flow stress (PFS) and recrystallization critical strain (RCS) decrease; as the strain rate increases, the PFS is enhanced, but the RCS drops. When the deformation temperature is within 1100°C and 1180°C, the grain size coarsens markedly with the temperature increasing. When the deformation temperature is lower than 1100°C，a higher strain rate is helpful for grain refinement. However, when the temperature is beyond 1100°C,the effect of strain rate on the grain size is reduced.
Yafang Han, Tianmin Wang and Shaoxiong Zhou
Q.J. Yu et al., "Hot Deformation Behavior and Mechanism of Alloy Inconel 625", Materials Science Forum, Vol. 650, pp. 186-192, 2010