Effect of Wire Diameter on Friction and Wear Behavior of 316L Stainless Steel Wire

In order to explore the optimal diameter of metal rubber stainless steel microwires, the effect law and mechanism of the diameter on the friction and wear behavior in small displacement oscillation under different loads and speeds were studied. And the quantitative relationship between the wear depth and the microwire diameter was established to evaluate the influence of the microwire diameter on the tribological behavior of the stainless steel microwire. The results showed that, under the same load and speed conditions, the wear depth of stainless steel wire decreased with the increase of wire diameter, which was due to the actual contact area of different wire diameters. The wear depth as a function of wire diameter was polynomial. The friction coefficients of stainless steel micro-wire increased with the increase of wire diameter, which was related to their actual contact morphology and wear debris movement state. Meanwhile, the load and speed had no influence of the wire diameter on the friction coefficient and wear depth of stainless steel wire. However, the stability of the actual contact area between the stainless wires with thick wire diameter made the impact of the load and speed on their wear depth and friction coefficient significantly smaller than that on the thin wire test pieces.