Influence of hydrogen on the evolution of recrystallization textures in pure iron

The mechanical and physical properties of materials are closely related to their texture. The influence of hydrogen on the evolution of recrystallization textures (R-cube, {111}[110], {111}[112], and {112}[1-10]) in a body-centered cubic metal was studied. Hydrogen at high temperatures promotes the evolution of R-cube and {112}[1-10] textures while hindering the evolution of {111}[110] and {111}[112] textures. The influence of hydrogen on recrystallization texture evolution differs between the nucleation and grain growth stages. Hydrogen promotes the evolution of {111}[110] and {111}[112] textures during both the nucleation and grain growth stages. For the R-cube and {112}[1-10] textures, hydrogen facilitates their evolution during the nucleation stage but hinders it during the grain growth stage. The mechanisms driving texture evolution during recrystallization nucleation and grain growth are suggested to be hydrogen-enhanced subgrain boundary migration (HESBM) and hydrogen-enhanced specific crystal plane rotation (HECPR), respectively.