A new and simple process to obtain nano-structured bulk low-carbon steel with superior mechanical property by Nobuhiro Tsuji, Rintaro Ueji, Yoritoshi Minamino, Y. Saito.
Abstract A new process to obtain ultrafine grained bulk steel was developed. Plain low-carbon sheet with martensite starting microstructure simply cold-rolled by 50% and annealed. The specimens annealed at intermediate temperatures such as 773 K revealed the multiphased nano-structure showed superior mechanical properties.