Tribo-corrosion behaviors of Ti3SiC2/Si3N4 tribo-pair in hydrochloric acid and sodium hydroxide solutions

► Ti3SiC2 exhibits relatively good tribo-corrosion in dilute and concentrated HCl and NaOH solutions. ► Mechanical wear resulting from decoherence of grains prevails over tribo-chemical wear. ► The oxide films on Ti3SiC2 and Si3N4 contribute to the decrease of friction. ► The high viscosity of NaOH solution contributes to the low friction and wear.