An investigation into the mechanisms of wear of zinc from the surface of zinc-coated car-body sheets during friction

This paper presents the results of an investigation into tribological wear of thin layers of zinc from the surface of car-body sheets during friction. The tribological tests were conducted with the use of an apparatus for drawing metal sheets. The influence of greases on the values of friction as well as on the diverse types of wear of top layers of zinc is analysed. The main emphasis is put on the mechanisms of wear affecting the top layers of zinc as well as on physical and chemical modification of the surfaces of mating elements. The author proposes a phenomenological model of tribological wear of zinc from the surface of car-body sheets.