3 results listed
Hybrid composites are materials that have a
combination of two or more reinforcements. These materials have
extensive engineering applications that have a low
strength/density ratio, low cost and ease of manufacturing. Hybrid
composites provide a combination of properties such as tensile
modulus, compressive strength and impact resistance, which
cannot be realized in composite materials. The surface properties
of the materials must be improved against corrosion and wear. It
is therefore essential and important that the coating layer has both
wear and corrosion resistant phases. In this study, the surface of
AISI 316L stainless steel is coated with metal powder having
different composition by tungsten inert gas (TIG) welding surface
coating method. Ti, B4C and SiC metal powders of different ratios
were used as coating powder. The corrosion properties of coated
samples were characterized by potentiostatic polarization test.
Corrosion test results showed that corrosion properties vary
depending on the coating components.
International Iron & Steel Symposium
UDCS
Serkan Islak
Mehmet Akkaş
Cihan Özorak
Aytekin Ulutaş
In this study, Cu–Mo composite coatings were produced on copper substrate by plasma spray technique.
Electrical conductivity and microstructure properties of the composite coatings were investigated. Microstructure
and phase composition of the coatings were examined by using optical microscopy (OM), scanning electron
microscope (SEM), X-ray diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDS). The
microhardness experiments were also performed by using a microhardness machine. The electrical conductivity
properties of the coatings were evaluated with eddy current instruments. Although the electrical conductivities of
the coatings are very small compared to the substrate, it has been determined that the coatings exhibit a very good
hardness values in comparison to the substrate.
International Symposium on Light Alloys and Composite Materials
UHAKS
Serkan Islak
Uğur Çalıgülü
Husain R.H. Hraam
Cihan Özorak
Vahdettin Koç
After the implantation of a biomaterial, it is exposed to mechanical loads and body fluids continuously or
periodically according to the implantation area. Hence, the most important expectancy of biomaterials is to be
biocompatible; not to cause a reaction or impede natural growth of the tissue, bone and organ. Ceramic materials
with excellent mechanical, corrosion and abrasion resistance is set in terms of features such as biomaterials. In this
study, ceramic coatings were produced on AISI 316L stainless steel by the plasma spray method. It was aimed to
investigate microstructure and biocompatibility properties of coatings. Scanning electron microscope (SEM)
analysis and X-ray diffraction (XRD) phase analysis were used to determine the microstructure and phase
composition properties. The biocompatibility properties of coatings have been tried to be determined by analysing
cytotoxicity and viability.
International Symposium on Light Alloys and Composite Materials
UHAKS
Serkan Islak
Nuray Emin
Cihan Özorak
Husain R.H. Hraam