The Investigation and Growth Kinetics of TiC Coatings on AISI D3 Steel Produced by Thermo-Reactive Diffusion Technique

Author:

Kurt B.1,Sinoplu O.,Carboga C.12,Demirel B.3

Affiliation:

1. Nevsehir University , Faculty of Engineering and Architecture, Department of Materials Engineering , Nevsehir – Turkey

2. Bartin University , Faculty of Engineering, Dept. of Metallurgical and Materials Engineering , Bartin – Turkey

3. Erciyes University , Faculty of Engineering, Dept. of Material Science and Engineering, Kayseri – Turkey; e-mail: , Fax: +90 352 437 49 31

Abstract

Abstract TiC coatings on AISI D3 cold-work tool steel were carried out by pack method thermo-reactive diffusion process (TRD) for 2 and 4 h at 950, 1 000, 1 050 and 1 100 °C, respectively. The carbide layers were evaluated based on microstructure, thickness, hardness, energy dispersive X-ray facility and X-ray diffraction analysis. Titanium carbide layer thickness on the coated specimens ranged from 6 to 23 μm, depending on treatment time and temperature. Growth kinetics of the carbide layers were analyzed measuring the depth of carbide layer as a function of temperature and time. The activation energy was estimated to be 249.42 kJ/mol. The micro-hardness value of the coating layer was obtained to be 2 470 HV in maximum.

Publisher

Walter de Gruyter GmbH

Subject

Metals and Alloys,Mechanics of Materials,Condensed Matter Physics,Electronic, Optical and Magnetic Materials

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