Effect of Microstructure on Hardness and Wear Properties of 45 Steel after Induction Hardening

The cover image illustrates the effect of microstructure on the hardness and wear properties of 45 steel after induction hardening. The formation and refinement of martensite improve the hardness and wear resistance. In this work by Lin Liu and co-workers, article number 2000540, the mechanism of 45 steel microstructure from austenite to martensite during the induction hardening was explored.