Metal Eğitimi / Metal Education

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Optimal Material Selection for Total Hip Implant: A Finite Element Case Study

Abdullah Tahir Sensoy; Çolak, Murat; Irfan Kaymaz; Fındık, Fehim (SPRINGER HEIDELBERG, 2019)

The selection of most proper materials in engineering design is known as an important stage of the design process. In order to successfully complete this stage, it is necessary to have sufficient knowledge about the structure ...
Modeling of the Impact of Initial Mold Temperature, Al5Ti1B and Al10Sr Additions on the Critical Fraction of Solid in Die Casting of Aluminum Alloys using Fuzzy Expert System

C. Teke; Çolak, Murat; Taş, Mehmet; İpek, Mümtaz (Polish Acad Sciences Inst Physics, 2019)

In the casting of liquid metal, the feeding stops when the mushy zone is clogged and does not allow the transfer of feeding liquid. The growing resistance of the solid dendrites against the fluidity of the feeding liquid ...
Evaluation of the Influence of Upset Stage on Joint Properties of Friction Welded Dissimilar Aluminum-Copper Cast Alloys

Barlas, Zafer; Çolak, Murat (PO BOX 197-IV, LJUBLJANA 61001, SLOVENIA, 2014)

Friction welding was applied to dissimilar aluminum cast bars alloyed with 2 and 8% copper and the effects of upset time on joint properties were evaluated in this study. The welding process was carried out by a vertical ...
Melt Cleanliness Comparison of Chlorine Fluxing and Ar Degassing of Secondary Al-4Cu

Çolak, Murat; Kayıkcı, Ramazan (SPRINGER, 2016)

The treatment of liquid aluminum prior to casting typically consists of purging gas and/or fluxes through the melt. By the use of several chemicals during these operations, several environmental problems can occur. Therefore, ...
DETERMINATION OF THE CRITICAL FRACTION OF SOLID DURING THE SOLIDIFICATION OF A PM-CAST ALUMINIUM ALLOY

Kayıkcı, Ramazan; Çolak, Murat; Şirin, Selçuk (INST ZA KOVINSKE MATERIALE I IN TEHNOLOGIE, 2015)

The results showed that the CFS values for solidifying aluminium alloys may vary from 34 % to 57 % depending on the casting conditions. The results also showed that for A356 aluminium-alloy castings the CFS value is not ...
Tribological behavior of an ultrahigh molecular weight polyethylene in lubricated environments

Kahyaoğlu, Osman Kenan; Ünal, Hüseyin; Mimaroğlu, Abdullah; Yetgin, Salih Hakan (EUROPEAN POLYMER FEDERATION, 2011)

The wear and friction performance of GUR 1020 grade ultrahigh molecular weight polyethylene (UHMWPE) polymer was studied in distilled water, HASS (Hank's balanced salt solution) and several protein lubrication environments. ...
The Effect of Test Parameters on Friction and Wear Performance of PTFE and PTFE Composites

Ünal, Hüseyin; Yetgin, Salih Hakan; Mimaroğlu, Abdullah; Sümer, Mensur (SAGE PUBLICATIONS LTD, 2010)

The friction and wear properties of pure poly-tetra-fluoro-ethylene (PTFE), 35% carbon filled poly-tetra-fluoro-ethylene (PTFE+35%C), and 17% glass fiber-reinforced polytetra- fluoro-ethylene (PTFE+17% GFR) sliding against ...
Evaluation of the Performance of H3BO3-filled Polyamide Composite

Ünal, Hüseyin; Yetgin, Salih Hakan; Şen, Uğur; Mimaroğlu, Abdullah (SAGE PUBLICATIONS LTD, 2010)

In this study, the performance of boric acid (H3BO3)-filled polyamide composites were studied and evaluated at dry-sliding friction conditions. Wear tests were carried out using configuration of composite pin on a rotating ...