Characteristics of the Worn Surface of Magnetized Sliding Contact Medium Carbon Steel/Medium Carbon Steel

Abstract

The characteristics of the worn surface of a pin were studied in the presence of a DC magnetic field. The experiments were conducted on a pin-on-disk tribometer in the ambient atmosphere. The medium carbon steel/medium carbon steel sliding couple was adopted. Compared to the pin formed in the absence of a magnetic field, oxidation becomes visible on the worn surface of the pin during the process of friction with the action of magnetic field. Fe₂O₃ was detected from the worn surface of a pin in the stable wear stage. The oxidation area of the worn surface of the pin gradually extends with increasing friction time. The wear of the pin decreases with extending of the oxidation area on the worn surface of the pin. The results reveal that the oxide layer formed on a pin worn surface is one of the key antiwear factors in the presence of a magnetic field.

Keywords:

• Antiwear
• ferromagnetic materials
• magnetic field
• oxidation area
• worn surface

Additional information

Funding

This work was supported by the Natural Science Foundation of China [grant no. 51375146], the Science and Technology Research Key Project of Henan Education Department [grant no. 14A460016], and the Innovation Capacity Cultivation Fund of Henan University of Science and Technology [grant no. 2014ZCX003].