▎ 摘　　要

A Fe-based coating of 400-500 mu m thickness was achieved after laser surface irradiation of spheroidal graphite cast iron, and the volume loss of spheroidal graphite cast iron was 4.4 times of Fe-based coating. It was demonstrated that, spheroidal graphite was domino exfoliated to spirally assembled graphene after laser irradiation. Owing to the good laser absorptivity of graphene, laser induced selective photothermolysis of graphene occurred. The heat of photothermolysis was transferred to graphite, due to the good thermal conductivity of graphene. Continuous selective photothermolysis and heat transfer led to the domino exfoliation of graphite to graphene. Induced by heat flow force and exfoliation force, the exfoliated graphene was spirally assembled. (C) 2015 Elsevier B.V. All rights reserved.