Die steel for hot deformation of copper and copper alloys Oleg Sydorchuk, Gennadii Bagliuk, Denys Myroniuk, Oleksandr Myslyvchenko and Ye Hongguang MATEC Web Conf., 366 (2022) 04003 Published online: 06 October 2022 DOI: 10.1051/matecconf/202236604003