In the article titled “Effect of Magnetic Field Coupled Deep Cryogenic Treatment on Wear Resistance of AISI 4140 Steel” [1], the fund number for “the Natural Science Foundation of China (NSFC)” was given incorrectly in the Acknowledgments section. The corrected section appears as follows:

Acknowledgments

This work was supported by the Natural Science Foundation of China (NSFC) (Grant no. 51675363).