Wear behavior of BCS glass ceramic coating on stainless still slab

Abstract The present study aims to assess the friction and wear characteristics of BSC glass-ceramic on 304L stainless steel, fabricated by air spray method. The dry sliding friction and wear behavior were investigated using a 4 mm diameter AISI52100 steel pin on disk geometry under 3–39 N loads, at different sliding speeds in dry conditions. Average friction coefficients (COF)and wear rates were varied in the range between 0.6–0.8 and 26 × 10−2–0.001 mm3/N m respectively. The results show that, the frictional behavior of glass-ceramic-metal couples depended on the metal transferred from the steel pin to the glass-ceramic's surface and the applied loads. It was found that the running–in period of G39 last shorter than the G3 one, also in the case of G39 the steady state friction coefficient was lower than G3. The wear tracks were examined using scanning electron microscope, it was revealed that, the intrinsic porosity of coat has affected on the amounts of debris as an important factor for the COF values.