İlhan Çelik

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• PhD
• Professor at Samsun University

In the present study, the surface of commercial pure (Grade 2) titanium was coated with electroless Ni-B and, then, it was subjected to heat treatment for an hour at 400 ℃. The surface morphology, microstructure and phase identification were analysed by X-ray diffraction and scanning electron microscope. Wear behaviour characterisation was carried...

In this study, MR elastomer (MRE) materials were produced using seven different types of silicone rubber and five different types of magnetically sensitive ferromagnetic powders. The MRE materials were obtained in three states: pure, isotropic (homogeneous), and anisotropic (aligned). Compression tests were conducted using a uniaxial testing machin...

In this study, plasma spraying methods with 100 % Al2O3 (AT0), 87 % Al2O3 + 13 % TiO2 (AT13), and 60 % Al2O3 + 40 % TiO2 (AT40) coatings were applied to the surface of aluminum alloy (AA 5083). After the coating processes, the structural analyses of the samples were performed using an XRD device. The thicknesses of the obtained coatings were measur...

In today’s world, the use of metals is widespread across various industries, with St37 steel plying a significant role. However, over time, this metal undergoes significant deterioration in its mechanical and physical properties, mainly due to factors such as corrosion and wear. Rather than using expensive methods such as alloying to extend the lif...

Manyeto-reolojik malzemeler dış manyetik alan etkisi altında tersinir ve hızlı bir şekilde cevap verebilmektedirler. Bu özellikleri bakımından akıllı malzemelerin bir türünü oluşturmaktadırlar. Bu tür malzemeler çeşitli mühendislik uygulamalarında, yapılarda isolator olarak ve aynı zamanda ses kontrol sistemlerinde kullanılmaktadır. Bu çalışm...

In this study, Cu−Cr−Zr alloy specimens were first subjected to aging heat treatment at 500 °C for two different durations (2 hours and 4 hours). Three different coating processes (silver, silver/copper duplex, and copper/silver duplex) were applied to the aged specimens using the physical vapor deposition method. Tensile test, microhardness measur...

Aluminum 5754 alloy appears as a candidate material for many engineering applications in terms of its lightness and strength values. The surface properties of this alloy need to be improved for applications where there is surface damage such as friction and wear. In this study, Central composite design was applied to investigate the influences of a...

Magneto-rheological (MR) materials can respond reversibly and quickly under the effect of an external magnetic field. MR materials contain micron-sized iron particles. These iron particles are typically dispersed in an elastomer or a liquid. These materials due to their properties constitute a kind of smart material in terms of engineering material...

Waste neodymium-iron-boron (NdFeB)-doped silicon-based magnetic polymer composites are obtained by mixing the double-doped mixtures with a 70-30% ratio. In this study, composite materials were produced by adding NdFeB magnetic particles with sizes between 0-45, 45-63, 63-125, and over 125 (µm), and compression experiments were carried out to determ...

Atık NdFeB katkılı silikon esaslı manyetik polimer kompozitler çift katkı maddeli karışımın %70-%30 oranında karıştırılması neticesinde elde edilmektedir. NdFeB manyetik partikülün partikül boyutları (0-45, 45-63, 63-125, 125-212, 212 ve üzeri mikron) dikkate alınarak üretilen kompozit malzemelerin mekanik özellikleri belirlenmiştir. Manyetik toz o...

Metallic biomaterials used in making hip prosthesis are required to meet expectations in terms of fatigue strength, corrosion resistance, wear resistance, cost and biocompatibility. It is also desirable that the modulus of elasticity they possess is close to the level of the possible bone. Metallic biomaterials face the problem of ion release even...

Metallic biomaterials used in making hip prosthesis are required to meet expectations in terms of fatigue strength, corrosion resistance, wear resistance, cost and biocompatibility. It is also desirable that the modulus of elasticity they possess is close to the level of the possible bone. Metallic biomaterials face the problem of ion release even...

Austenitic stainless steels are widely used in several industries such as chemistry, food, health and space due to their perfect corrosion resistance. However, in addition to corrosion resistance, the mechanic and tribological features such as wear resistance and friction are required to be good in the production and engineering of this type of mac...

The structure and the wear resistance of commercial-purity titanium subjected to plasma nitriding followed by chemical deposition of a Ni – B coating are studied.

Magnesium and its alloys are the engineering materials which have the potential ability to be able to used widely particularly in the automotive, aerospace and in the biomedical sectors, especially thanks to their features such as lightness, specific strength that they have and biocompatibility. However, due to their poor wear resistance and corros...

Titanium and its alloys are widely used in many fields, including aerospace and the chemical and biomedical industries. This is due to their mechanical properties, excellent corrosion resistance, and biocompatibility although they do have poor wear resistance. In this study, a duplex layer was successfully formed on the commercially pure titanium s...

Titanium and its alloys are widely used as materials for bio-medical applications, such as implants. However, ions of the alloy can release to the body region and spread into the blood circulation. In this study, plasma nitriding and CrN coating techniques are used in order to overcome the problem of ion release. The objective of this study was to...

In this study, plasma nitriding treatment was applied to commercially pure titanium (Grade 2). Structural properties, electrochemical and tribological behaviours of the nitrided pure titanium specimens were comparatively investigated. Microstructure and morphology of the plasma nitrided specimens were analysed by X-ray diffraction and scanning elec...

Saf titanyum, dusuk agirligi nedeniyle sanayide cok genis kullanim potansiyeline sahiptir, fakat diger taraftan dusuk sertlik ve asinma direnci, yuksek sicakliklarda zayif korozyon direnci ve yuksek maliyet gibi tasidigi bazi dezavantajlar nedeniyle kullanimi hala sinirli olmaya devam etmektedir. Saf titanyumun bu zayif yanlarini guclendirmek amaci...

Pure titanium has a very large potential for use industrially due to its low weight, however, its usage continues tobe limited because it possesses some disadvantages such as low hardness and wear resistance, weak corrosionresistance in high temperatures and high cost. In order to strengthen these weaknesses of pure titanium, electroless Ni-B depos...