(A) The diagram of FSC experimental steps. T_q is a certain preset temperature that is lower than T_x (crystallization onset temperature). Isothermal at this preset temperature for 10 s to obtain the time (t) needed for crystallization, usually t < 10 s, because T_q is chosen high enough. (B)–(F) T_q versus t of five different MGs. Each MG is compared in both annealed and as-cast states.