3 results listed
Carbon steels have a wide range of applications such as
construction, machine components (shafts, bolts etc.) and
transportation. Corrosion is one of the important reason for the
failure of these materials. In this study, the corrosion behavior of
hot-rolled carbon steel against dimethylformamide (DMF) was
investigated. Also, the corrosion resistance of the sample was
compared to untreated carbon steel and heat treated carbon
steel. Stress relieving heat treatment was applied at 550 ℃ for 90
minutes. Electrochemical corrosion tests were performed for all
samples. In addition, while the chemical composition of the
sample was determined by spectral analysis, microstructure
studies were carried out by an optical microscope.
International Iron & Steel Symposium
UDCS
Yasin Akgül
Hamza Simsir
Hayrettin Ahlatçı
This work can be located to two parts. In the first part,
hydrothermal carbon (HTC) was synthesized from cellulose at
180 ℃ for 20 hours. In the second part, HTCs reinforced iron
matrix composites were fabricated via powder metallurgy. For
this fabrication process, HTCs and iron powders were mixed by
turbula mixer for one hour. Then, obtained mixtures of powders
were compacted by press machine at 700 Mpa. After that, green
billets were sintered at 1100 ℃ for one hour. Microstructures of
samples were characterized by Scanning Electron Microscope
(SEM). Density measurement was applied according to
Archimedes method. Hardness and compression tests were
conducted to determine mechanical properties of samples.
International Iron & Steel Symposium
UDCS
Hamza Simsir
Yasin Akgül
Mehmet Akif Erden
In this study, effect of boron nitride particles on the mechanical properties of aluminum composites
reinforced with BN particles was investigated. Experimental procedure was started with mixturing of
powders in the turbula mixer. Hot press was applied at 550 C in argon atmosphere. For characterization of
microstructure, scanning electron microscope (SEM) analysis was done. Compression test was applied for
determination of strength. Vickers hardness was used to measure hardness of samples.
International Iron & Steel Symposium
UDCS
Yasin Akgül
Yuksel Akinay
Fazil Hüsem
Hamza Simsir
Safa POLAT