Naslov
Influence of heat treatment on metallographic and mechanical properties of ductile iron

Autori
Opačak, Ivan ; Berić, Nikolina ; Starčević, Valnea ; Bašić, Aleksandar

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
XIX International scientific congress winter session MACHINЕS. TECHNOLОGIES. MATERIALS 2022 / Popov, Georgi - Sofia : Scientific-technical Union of Mechanical Engineering "INDUSTRY 4.0", 2022, 92-94

Skup
XIX International Scientific Congress: Machines. Technologies. Materials

Mjesto i datum
Borovec, Bugarska, 09.03.2022. - 12.03.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ductile iron ; heat treatment ; structures ; hardness

Sažetak
Due to the mechanical properties (toughness, elongation, tensile strength) that characterize ductile iron, its application in foundry technology is becoming more pronounced every day. The chemical composition and heat treatment of ductile iron have a great influence on the required mechanical properties. Given the operating conditions, the main purpose of heat treatment of ductile iron is to change the desired mechanical properties. Since the specific mechanical properties of ductile iron are generally related to the regularity of the mined graphite nodules, the main objective in production is to produce ductile iron with the highest possible percentage of ductility. In the experimental part of the paper, microstructure and hardness tests were carried out on specimens of ductile iron NL 400 and NL 700 before and after heat treatment by soft annealing (ferritization) and improvement. It was found that the type and corresponding parameters of heat treatment significantly affect the microstructure and the achieved hardness values of the ductile iron test specimens.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA