Department of Metallurgical and Materials Engineering, Thesis

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Thesis (853)

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Author
Akyıldız, Öncü (2)
Arıkan, Rafet (2)
Aydoğdu, Abdi (2)
Aydınol, Mehmet Kadri (2)
Aygün, Hacer (2)

Subject
Metallurgy. (49)
Steel (27)
Metals (24)
Aluminum alloys. (21)
Metallurgical and materials engineering. (18)

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1968 - 1979 (95)
1980 - 1999 (301)
2000 - 2019 (427)
2020 - 2022 (30)

Item Type
Master Thesis (758)
Ph.D. Thesis (93)
Thesis (2)

Recent Submissions

Functionalization of glass fiber woven fabrics by ITO coatings and characterization of their electromagnetic properties Özdil Darıcıoğlu, Merve; Dericioğlu, Arcan Fehmi; Department of Metallurgical and Materials Engineering (2022-1-14) ITO sols were deposited on glass fiber woven fabrics by spray pyrolysis technique and electrical conductivity of these layers was controlled to incorporate electromagnetic (EM) wave absorbing characteristics to glass fabri...
Development and production of ductile TiZrNbHfTa refractory high entropy alloy system for extreme environments İroç, Lütfi Koray; Aydoğan Güngör, Eda; Kalay, Yunus Eren; Department of Metallurgical and Materials Engineering (2022-1-13) High entropy alloy (HEA) is a trending material class that was discovered in the early 2000s. By definition, it consists of a single or dual phase by combining 5-13 elements with a 5-35% atomic ratio. They exhibit extraord...
The effect of Si and Mo on the isothermal transformation treatment and tempering of a bainitic medium C steel Kafadar, Gülten; Ögel, Bilgehan; Department of Metallurgical and Materials Engineering (2021-12) Bainitic steels have become popular in recent years that generally include medium-high C(~0.5-1%), high Mn(~1-2%) and high Si (~1-2%) because of their high mechanical properties. However, their transformation time is very ...
Development of amino functionalized POSS based (3-Glycidoxypropyl)trimethoxysilane hybrid sol-gel coatings for aircraft applications Varan, Dilara Çisel; Öztürk, Abdullah; Department of Metallurgical and Materials Engineering (2021-12) An amino functionalized and 50 percent amphiphilic polyhedral oligomeric silsesquioxane (POSS) based (3-Glycidoxypropyl)trimethoxysilane (GPTMS) sol-gel reaction was carried out under extreme basic conditions. Amount of PO...
ELECTROLESS DEPOSITION OF OXIDATION RESISTANT HIGH TEMPERATURE COATINGS IN MOLTEN SALT Ömür, İshak Emre; Karakaya, İshak; Erdoğan, Metehan; Department of Metallurgical and Materials Engineering (2021-9-10) Molybdenum and molybdenum alloy (TZM) can be protected against oxygen in hightemperature environment by developing silicide coating on their surface without damaging their mechanical properties. In this study, molybdenum ...
Interfacial reaction kinetics and microstructural evolution of C/SiC composites to metal joints Saltık, Simge; Dericioğlu, Arcan Fehmi; Department of Metallurgical and Materials Engineering (2021-9-09) In the present study, joining of two dissimilar materials namely C/SiC composites and Ti6Al4V alloys by brazing using Ag-Cu based brazing filler alloys have been investigated. The effect of active Ti element content, addit...
High Temperature Mechanical Properties of Ceramic Dispersoid Reinforced 17-4 PH Stainless Steel Produced by Selective Laser Melting Özsoy, Andaç; Dericioğlu, Arcan Fehmi; Aydoğan Güngör, Eda; Department of Metallurgical and Materials Engineering (2021-9-08) Selective Laser Melting (SLM) is a metal additive manufacturing process used to produce complex-shaped parts by the fusion of metal powders by a laser heat source. SLM processing of metals offers various advantages such as...
The effects of chemical short-range order on crystallization pathway in ternary marginal glass forming alloys Erdal, Emel; Kalay, Yunus Eren; Department of Metallurgical and Materials Engineering (2021-9-08) Among all the metallic glass-forming systems, Al-based marginal glass-forming alloys (Al-RE or Al-TM-RE) have been recently received significant attention due to their unusual devitrification behavior. The population of n...
SILVER-PLATINUM CORE-SHELL NANOWIRES FOR ELECTROCHEMICAL APPLICATIONS Tunca, Şensu; Ünalan, Hüsnü Emrah; Department of Metallurgical and Materials Engineering (2021-7) Silver nanowire (Ag NW) networks are one of the most outstanding candidates for optoelectronic applications to replace the commercial transparent conducting oxides (TCOs). Their high mechanical stability, solution based an...
Combinatorial development of LSF-based cathode materials for intermediate temperature solid oxide fuel cells Kılıç, Fahrettin; Öztürk, Tayfur; Department of Metallurgical and Materials Engineering (2021-6) This thesis focuses on the synthesis, characterization, and processing of LSF based composite cathode for solid oxide fuel cells. The cathode comprises three oxides; LSM, LSF and ScSZ which are synthesized by co-sputtering...
Grain refinement of al-si-mg cast alloys with niobium – boron addition Aldoğan, Enver Burak; Kalkanlı, Ali; Department of Metallurgical and Materials Engineering (2021-2-15) The aim of this thesis is to observe the grain refinement effect of aluminum (Al), niobium (Nb) and boron (B) alloy for silicon and magnesium-based aluminum cast alloys, especially A357. When the silicon content exceeds th...
Development and characterization of catalyst materials of zinc-air batteries Arslan Hamat, Burcu; Aydınol, Mehmet Kadri; Department of Metallurgical and Materials Engineering (2021-2-12) Recently, primary and secondary zinc-air batteries have attracted considerable attention due to their high energy density, safety, availability and low cost. Zinc-air batteries generate electricity through a redox...
Investigating effects of heat treatment processes on microstructural and mechanical properties of additively manufactured 18ni300 maraging steel Aydın, İbrahim; Gür, Cemil Hakan; Department of Metallurgical and Materials Engineering (2020-9-10) 18Ni300 maraging steel (MS300) has exceptional mechanical properties due to nanosize intermetallic precipitates in martensitic matrix. It is preferred for critical aircraft components that require high strength and toughn...
Local Structure and Chemistry in Marginal Forming Alloys Ulucan, Tolga Han; Kalay, Eren; Department of Metallurgical and Materials Engineering (2020-9) In this thesis structural and corresponding mechanical properties of marginal metallic glass-forming alloys were studied. Al90Tb10 system exhibits unique devitrification features due to their exceptional primary crystall...
Development of electrically conductive porous silk fibroin/carbon nanofiber scaffolds Tufan, Yiğithan; Ercan, Batur; Department of Metallurgical and Materials Engineering (2020-8) Tissue engineering applications typically require porous scaffolds which provide requisite surface area for cellular functions, while allowing nutrient, waste and oxygen transport with the surrounding tissues. Concurrently...
Synthesis of g-C3N4/TiO2 heterojunction composites with enhanced solar light photocatalytic activity Gündoğmuş, Peli; Öztürk, Abdullah; Department of Metallurgical and Materials Engineering (2020) The solar light sensitive g-C3N4/TiO2 composites containing various amounts of graphitic carbon nitride (g-C3N4) and titania (TiO2) were prepared by the hydrothermal and sol-gel processes for photocatalytic applications. H...
Synthesis and structural characterization of multifunctional Ti alloy: gum metal Elçin, Orkun; Akdeniz, M. Vedat.; Department of Metallurgical and Materials Engineering (2020) Gum metal (Ti-23Nb-0.7Ta-2Zr-1.2O at%), a newly discovered titanium alloy, is considered as a suitable unique alloy for structural applications in aerospace, sports equipment, industrial, and especially in biomedical areas...
Effect of post-processing heat treatment on the mechanical properties of inconel 718 fabricated by selective laser melting Özer, Seren; Dericioğlu, Arcan Fehmi; Department of Metallurgical and Materials Engineering (2020) In this study, effect of the building direction and post-processing heat treatments on the microstructure and high temperature mechanical properties of as-fabricatedInconel 718 alloys have been investigated. Inconel...
Effect of cold rolling and annealing parameters on the microstructure and mechanical properties of dual phase steels Poyraz, Okan; Ögel, Bilgehan; Department of Metallurgical and Materials Engineering (2020) This study consists of change in the microstructure and mechanical properties of the 0.14C-1.98Mn steel with different cold rolling ratios, annealing temperature and annealing time. The starting sheet metal is 2.8mm thick ...
Synthesis of calcium carbonate particles for biomedical applications Oral, Çağatay Mert; Ercan, Batur; Department of Metallurgical and Materials Engineering (2020) Calcium carbonate (CaCO3) particles have been widely used in biomedical applications owing to their biocompatibility and biodegradability. In order to effectively utilize CaCO3 particles in biomedical applications, their p...

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