Induction hardening treatment and simulation for a grey cast iron used in engine cylinder liners

[摘要] In this research, a technical study of induction hardening in a grey cast iron used in engine cylinder liners manufactured by LAVCO Ltda., a Colombian foundry company, was carried out. Metallurgical parameters such as austenitization temperature, cooling rate, and quenching severity were determined. These factors are exclusively dependent on chemical composition and initial microstructure of grey cast iron. Simulations of induction heating through finite elements method were performed and, the most appropriate experimental conditions to achieve the critical transformation temperature was evaluated to reach a proper surface hardening on the piece. Preliminary results revealed an excellent approximation between simulation and heating test performed with a full bridge inverter voltage adapted with local technology.

[发布机构] Universidad Industrial de Santander, Bucaramanga, Colombia^1;Industrias LAVCO, Floridablanca-Santander, Colombia^2

[效力级别] 化学

[关键词] Austenitization temperatures;Chemical compositions;Critical transformation temperature;Experimental conditions;Full-bridge inverters;Induction hardening;Initial microstructures;Metallurgical parameters