Influence of modifying additives in aluminum alloys on changes in their hardness and tribotechnical properties
The paper presents the results of metallographic studies and tests for friction and wear of aluminum alloys with various modifiers. The effect of the modifier on the microhardness, size and shape of silicon grains is studied. The dependences of the change in the coefficients of friction and the wear rate of alloys at constant pressure are obtained. According to the wear intensity, alloys with modifiers have greater wear resistance. According to the results of abrasive wear, the sample of the starting material was significantly inferior to the modified alloys with foil and tape.