Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

Yazarlar: Gökhan ÖZER

Konular:Malzeme Bilimleri, Ortak Disiplinler

DOI:10.28948/ngumuh.806495

Anahtar Kelimeler:Duplex stainless steel (DSS),1.4462,Phase change,Corrosion behaviour

Özet: Stainless steels are significant building material today. With the double phase, it contains, duplex stainless steels (DSS) have become a very prominent material type in recent years. Although 1.4462 stainless steels show superior corrosion and mechanical properties, their usage areas are limited in high-temperature applications due to phase transformations in the microstructure. In this study, by applying high-temperature heat treatment to 1.4462 duplex stainless steel, the effects of phase transformations in the microstructure on hardness and corrosion properties were investigated. For this purpose, optical microscope (OM), scanning electron microscope (SEM), Energy-dispersive X-ray spectroscopy (EDS), hardness and electrochemical corrosion tests were performed on heat-treated samples. According to the results, it was determined that secondary phases formed at high temperatures affect the mechanical and corrosion properties of the material.

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