Experimental Investigation of the Wear and Damage of CL60 Wheel Material in a Humid Hot Environment

In this study, a twin-disc test rig with an environmental control chamber was used to conduct experiments on the influence of ambient temperature and humidity on the adhesion and damage of CL60 wheel steel. The results indicated that the degree of wheel surface oxidation increased with increasing temperature under high humidity conditions. The formation of iron hydroxide on the surface increased friction and damaged the surface. As the relative humidity increased, the moisture in the generated oxide debris reached a saturated state, and the debris exhibited a pasty texture that significantly reduced adhesion. Under high humidity conditions, the plastic deformation layer of the wheel increased obviously. The depths and lengths of cracks that formed in the wheel under high humidity conditions were greater than those produced under medium and low humidity conditions.