Abstract
High-speed steel (HSS), traditionally used in the hot rolling industry, suffers from the problem of wear and corrosion. The integral changing of HSS, however, is expensive. For modifying the surface property of metal materials, submerged arc welding, among the industrial additive manufacturing technologies, is employed. In this study, we aim at improving the resistance of carbon steel cladding against corrosion and wear. To reduce cost, the HSS matrix is replaced by carbon steel. Electrochemical corrosion and high-temperature dry sliding wear experiments are implemented to study the corrosion and tribological behavior of HSS and surface-modified claddings. The wear and corrosion behaviors are characterized by potentiodynamic polarization, electrochemical impedance spectroscopy, wear rate, coefficient of friction, and worn surface morphology. The experimental results indicate that the corrosion current density (Icorr) of carbon steel claddings, ranging from 11.023 × 10−3 to 3.372 × 10−3 mA∙cm−2, is lower than that of the HSS alloy (19.247 × 10−3 mA∙cm−2). The passive film resistance of prepared carbon steel cladding-3 (1870 Ω∙cm2) is in fact larger than the resistance of HSS (1075 Ω∙cm2). The corrosion resistance of surface-modified carbon steel claddings is better than that of the HSS. The wear rates of carbon steel cladding-2 (1.99 × 10−7 mm3·N−1·mm−1) and carbon steel cladding-3 (2.49 × 10−7 mm3·N−1·mm−1) approximate the wear rate of HSS (1.59 × 10−7 mm3·N−1·mm−1). Moreover, the wear width of prepared carbon steel cladding-3 (550 μm) is slightly larger than that of HSS (500 μm). The wear resistance of carbon steel cladding-3 approximates that of HSS.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call