Hot Deformation Behavior and Mechanism of Alloy Inconel 625

Q.J. Yu; Wen Ru Sun; M. Cai; X.J. Wu; Shou Ren Guo; H.C. Yang; Z.Q. Hu

doi:10.4028/www.scientific.net/MSF.650.186

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HomeMaterials Science ForumMaterials Science Forum Vol. 650Hot Deformation Behavior and Mechanism of Alloy...

Hot Deformation Behavior and Mechanism of Alloy Inconel 625

Abstract:

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.