KhOD-1 - highly efficient inhibitor of corrosion and corrosion-fatigue fracture in steet

Investigation results on protective ability of KhOD-1 inhibitor, which does not form foam in acid solutions, as well as of KhOSP-10, KI-1, PB-5, BA-6 inhibitors and urotropin (in concentration of 1 g/l) during deceleration of corrosion and corrosion-mechanical fracture of steels 40Kh and 20 in solutions of sulphuric, hydrochloric and phosphoric acids, have been presented. Corrosion rate is determined by weight method, and characteristics of corrosion-mechanical fracture during corrosion cracking and low-cycle fatigue. It is established that KhOD-1 inhibitor ensures high protection in solutions of sulphuric, phosphoric and hydrochloric acids, at that, it realizes its protective properties to the utmost in 5 N HCl, especially after its preliminary heating to 90 deg C for 30 min. Urotropin additions are the weakest ones as to their protective effect