Hot deformation behavior and comparison of different constitutive models of as-cast ER8 steelFei Chen, Zhe Jia, Xiaofeng Zhang, Yongxing Jiao, Fei Li and Xuezhong ZhangMetall. Res. Technol., 120 4 (2023) 403DOI: https://doi.org/10.1051/metal/2023046