Department of Metallurgical and Materials Engineering, Thesis

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Thesis (845)

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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)

Date Issued
1968 - 1979 (95)
1980 - 1999 (301)
2000 - 2019 (427)
2020 - 2021 (22)

Recent Submissions

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...
Development of high strength lightweight high entropy alloys (LWHEAs)
Polat, Gökhan.; Kalay, Yunus Eren; Department of Metallurgical and Materials Engineering (2020)
In this thesis, the HEA formation ability of low-density elements was carefully studied in detail. In this respect, lightweight or relatively lightweight elements such as B, Mg, Al, Si, Ti, V, Cr, Mn and combinations of th...
Production and characterization of aluminum matrix composites for small-scale unmanned aircraft engine pistons
Demiralp, Muammer; Kalkanlı, Ali; Department of Metallurgical and Materials Engineering (2020)
The composite materials are used in every stage in life, from the aerospace industry to agriculture. In most composites, the primary purpose of adding reinforcement to the matrix material is to increase the strength and st...
Fatigue behavior of welded API 5L X70 pipeline steel
Turhan, Şermin Özlem; Gürbüz, Rıza; Department of Metallurgical and Materials Engineering (2020)
In this study, fatigue failure behavior of welded X70 pipeline steel was investigated by rotating bar bending fatigue tests performed at room temperature. S-N curves of base metal, weld and heat-affected zone (HAZ) were pl...
Colloidal stabilization of LTA type zeolites in ethanolwater mixtures
Gözcü, Oğuz; Çınar, Simge; Department of Metallurgical and Materials Engineering (2020)
Zeolites are promising materials for various applications because of their uniform pores at the nano- and micron- scales as well as their chemical and surface properties. In recent years, fabrication of the complex shape z...
Fabrication of high density alumina ceramics from nanopowders through colloidal processing.
Kayacı, Hüseyin Utkucan; Çınar, Simge; Department of Metallurgical and Materials Engineering (2020)
Utilizing nanopowders in production of fully dense materials with fine grain structures is highly advantageous, particularly where high mechanical properties are desired. Besides, recently developed techniques, such as 3D-...
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...
Surface modification of tantalum via anodization for orthopedic applications
Uslu, Ece; Ercan, Batur; Department of Metallurgical and Materials Engineering (2020)
Tantalum has excellent corrosion resistance and mechanical properties suitable for orthopedic applications. However, tantalum exhibits bioinert characteristics and cannot promote desired level of osseointegration with juxt...
Copper removal from regenerated pickling solutions of steel plants
Sütcü, Esra; Öztürk, Abdullah; Department of Metallurgical and Materials Engineering (2020)
Pickling is a metal surface treatment technique, made by strong inorganic acids to prepare metals for subsequent processes. The process generates a substantial amount of waste acid because large amount of acid is spent dur...
Magnetoelectric heterojunction properties of multiferroic materials
Özdilek, Çağrı; Özenbaş, A. Macit.; Department of Metallurgical and Materials Engineering (2020)
Bismuth ferrite (BiFeO3) has gained a great interest over the past years as it exhibits more than one primary ferroic orders in a single phase. In the first part of this work, optimum parameters, such as reaction temperatu...
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 ...
Production and characterization of hierarchically porous transparent glasses
Ertuş, Emre Burak; Öztürk, Abdullah; Department of Metallurgical and Materials Engineering (2020)
A sodium borosilicate glass (SBG) with nominal composition of 55.7SiO2-33.6B2O3-9.2Na2O-1.5Al2O3 (wt %) was produced by the conventional melt-quenching method. The as cast SBG was heat treated at various temperatures to in...
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