Akademik Veri Yönetim Sistemi
Tezin Türü: Yüksek Lisans
Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, Metalurji Ve Malzeme Mühendisliği Bölümü, Türkiye
Tezin Onay Tarihi: 2022
Tezin Dili: İngilizce
Öğrenci: SEHER TOPUZ
Asıl Danışman (Eş Danışmanlı Tezler İçin): Rıza Gürbüz
Eş Danışman: Caner Batıgün
Özet:
Fe-Ni-based superalloys are characterized by high strength, toughness, and corrosion resistance materials at room and elevated temperature applications. They are generally used in many parts requiring high toughness and ductility, such as aerospace, industrial gas turbine, and industrial components. The mechanical properties of Fe-Ni-based superalloys depend on three main effects. These alloying elements are added to the structure, working processes, and heat treatment. This study investigates the effect of alloying elements after heat treatment on the characterization and fatigue crack growth behavior of three Fe-Ni-based superalloys with different compositions. The results show that Fe-Ni-based superalloys with different chemical compositions and production routines give different heat treatment mechanisms respond to the same heat treatment parameters. Also, the effect of γ’ formation and carbide precipitation on the mechanical properties of different Fe-Ni-based superalloys are discussed with heat treatment.