Pregled bibliografske jedinice broj: 1126809
Corrosion behaviour of tempered 42CrMo4 steel
Corrosion behaviour of tempered 42CrMo4 steel // Materiali in tehnologije, 55 (2021), 3; 427-433 doi:10.17222/mit.2021.014 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1126809 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Corrosion behaviour of tempered 42CrMo4 steel
Autori
Smokvina Hanza, Sunčana ; Štic, Lovro ; Liverić, Lovro ; Špada, Vedrana
Izvornik
Materiali in tehnologije (1580-2949) 55
(2021), 3;
427-433
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
quenching ; tempering ; characterization ; corrosion
Sažetak
Low-alloy 42CrMo4 steel (AISI 4140) is a medium carbon steel, commonly used as a quenched and tempered steel. Because of its good mechanical properties, high tensile strength and toughness, 42CrMo4 is one of the widely used and investigated steels. To increase ductility even more, in addition to standard quenching and tempering, the steel is often hardened by double quenching and tempering and austempering. The aim of this paper was to investigate the corrosion behaviour of 42CrMo4 steel after quenching and tempering, double quenching and tempering and austempering. For this purpose, microstructural characterization and electrochemical investigation after different hardening processes were performed. The microstructure of the specimens was observed using optical microscopy and scanning electron microscopy. Open circuit potential and potentiodynamic polarization measurements of the tempered specimens were carried out using a computer- controlled potentiostat with a three- electrode set- up in 0.6 M NaCl naturally aerated solution. It was concluded that applied heat treatment processes increase the corrosion resistance of the 42CrMo4 steel in comparison to normalized steel. In comparison to quenched and tempered steel, double quenching and tempering, as well as austempering, do not significantly change the corrosion resistance of the steel.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo, Temeljne tehničke znanosti
POVEZANOST RADA
Projekti:
NadSve-Sveučilište u Rijeci-uniri-tehnic-18-293 - Istraživanje alternativnih tehnika hlađenja-podmazivanja za održivu strojnu obradu teško obradivih materijala (Cukor, Goran, NadSve ) ( CroRIS)
Ustanove:
Tehnički fakultet, Rijeka,
Istarsko veleučilište - Universita Istriana di scienze applicate
Profili:
Vedrana Špada
(autor)
Lovro Liverić
(autor)
Lovro Štic
(autor)
Sunčana Smokvina Hanza
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus