Article
Thermophysical Properties of Materials
2022. V. 60. № 3. P. 353–357
Ghat Mohamed, Afify AhmedS.
Hot formability of inconel 718 using constitutive equations
Annotation
Hot deformation behavior of an Inconel 718 superalloy was investigated by hot torsion tests over wide ranges of strain rate and temperature. In this study, the effects of hot deformation parameters (deformation temperature and strain rate) on flow stress are analyzed. The flow stress of the solution treated superalloy was significantly affected by deformation temperature and strain rate, the samples were then deformed in the temperature range 1050–1100∘C, under strain rates of 0.01, 0.1, and 1 s−1. The flow stress decreased with strain rate or the increase of deformation temperature. Based on the experimental results, a constitutive model was developed to describe the hot deformation behavior. The microstructural analysis of the testing samples were performed, in order to correlate the microstructural state with the mechanical properties of the Inconel 718.
Article reference:
Ghat Mohamed, Afify AhmedS. Hot formability of inconel 718 using constitutive equations, High Temp., 2022. V. 60. № 3. P. 353
Ghat Mohamed, Afify AhmedS. Hot formability of inconel 718 using constitutive equations, High Temp., 2022. V. 60. № 3. P. 353