Bilgehan Ögel

E-mail

bogel@metu.edu.tr

Department

Department of Metallurgical and Materials Engineering

ORCID

0000-0003-1181-4395

Scopus Author ID

56556702900

Web of Science Researcher ID

ABH-4890-2020

Effect of isothermal transformation treatment and tempering on the microstructure and hardness of a medium c and high si steels KAFADAR, Gülten; Kalkanlı, Ali; ÖZDEMİR, ABBAS TAMER; Ögel, Bilgehan (2021-01-01) This research work aims to study the effect of 2wt%Mo on bainitic transformation kinetics and bainite morphology in 0.6wt%C-1.2wt%Si-1.0wt%Mn-0.2wt%Cr steel. Specimens are austenitized at 950°C and rapidly cooled in salt b...
Bauer BG 36 Model Zemin Delgi Makinasının Hidromotor ve Dişli Grubu Hasarlarının Kaynağının Belirlenmesinine Yönelik Uzman Raporu Ögel, Bilgehan; Bayer, Özgür (2020-09-01)
Recrystallization, grain growth and austenite formation in cold rolled steels during intercritical annealing Poyraz, Okan; Ögel, Bilgehan (2020-09-01) In this study, the effect of cold rolling on the recrystallization, grain growth of ferrite and the austenite formation in 0.14C-1.98Mn steel is studied extensively with different intercritical annealing times and temperat...
4 Serisi Çöp Gazı Motoru Piston ve Silindir Hasarlarının Kaynağının Belirlenmesinine Yönelik Uzman Raporu Ögel, Bilgehan; Bayer, Özgür (2019-10-01)
Ballistic impact performance of an armor material consisting of alumina and dual phase steel layers Ubeyli, Mustafa; Deniz, Huseyin; DEMİR, TEYFİK; Ögel, Bilgehan; Gurel, Bayram; KELEŞ, Ömer (2011-03-01) Utilization of a ceramic front layer provides an improvement in the ballistic efficiency of monolithic metallic materials. In the current paper, the ballistic behavior of laminated composite having alumina front and dual p...
Investigation on the ballistic behavior of Al(2)O(3)/Al2O24 laminated composites Ubeyli, Mustafa; Yıldırım, Raif Orhan; Ögel, Bilgehan (2008-01-21) Laminated composites have great potential in producing lightweight armors. This study presents the experimental study of the low velocity ballistic behavior of Al(2)O(3)/Al2O24 (alumina/aluminum) laminated composites again...
Effect of Feed Rate on Tool Wear in Milling of Al-4% Cu/B(4)C(p) Composite Ubeyli, Mustafa; ACIR, Adem; Karakas, M. Serdar; Ögel, Bilgehan (Informa UK Limited, 2008-01-01) The effect of feed rate on tool wear in milling of B(4)C(p) reinforced aluminum metal matrix composites (MMCs), produced by liquid phase sintering method, was investigated. Milling experiments on these composites were cond...
On the comparison of the ballistic performance of steel and laminated composite armors Ubeyli, Mustafa; Yıldırım, Raif Orhan; Ögel, Bilgehan (2007-01-01) Steels have been widely used as armour materials in defence applications, but they have the disadvantage of a relatively high density. Hence, they are not suitable for lightweight armour production. On the other hand, lami...
Effect of cutting speed on tool performance in milling of B4Cp reinforced aluminum metal matrix composites Karakas, M. Serdar; Acir, Adem; Ubeyli, Mustafa; Ögel, Bilgehan (Elsevier BV, 2006-09-14) In this study, wear behavior of various tools in milling process of Al-4Cu/B4Cp composites was investigated. For this purpose, composite samples were produced by liquid phase sintering to be used in milling operation. Five...
On the drop-weight testing of alumina/aluminum laminated composites Ubeyli, M; Yıldırım, Raif Orhan; Ögel, Bilgehan (2005-10-01) Laminated composites with ceramic front layers and metallic or composite backing layers have gained attractiveness as 11,lightweight armours, as they exhibit the same ballistic performance with lower area] densities as com...

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