Thermal treatment effect on structural and mechanical properties of Cr–C coatings
| Autor: | Amel Zairi, Linda Aissani, Mohamed Zine Touhami, Alain Iost, Hamid Djebaili, Alex Montagne, Mamoun Fellah, Mohamed Abdul Samad, Corinne Nouveau |
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| Přispěvatelé: | Université Badji Mokhtar - Annaba [Annaba] (UBMA), Universite Abbes Laghrour [Khenchela], Mechanics surfaces and materials processing (MSMP), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), King Fahd University of Petroleum and Minerals (KFUPM), Laboratoire Bourguignon des Matériaux et Procédés (LABOMAP) |
| Rok vydání: | 2018 |
| Předmět: |
matière Condensée: Science des matériaux [Physique]
Materials science Scanning electron microscope Analytical chemistry chemistry.chemical_element 02 engineering and technology Thermal treatment Annealing treatment 01 natural sciences Carbide Diffusion Chromium chemistry.chemical_compound X-ray photoelectron spectroscopy Hardness 0103 physical sciences Young’s modulus Thin film 010302 applied physics Metals and Alloys Surfaces and Interfaces Sputter deposition 021001 nanoscience & nanotechnology Condensed Matter Physics Surfaces Coatings and Films chemistry Mechanics of Materials [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Chromium carbide 0210 nano-technology |
| Zdroj: | Transactions of the IMF Transactions of the IMF, 2018, 96 (2), pp.79-85 |
| ISSN: | 1745-9192 0020-2967 |
| DOI: | 10.1080/00202967.2018.1424403 |
| Popis: | International audience; In the present study, the effect of thermal treatment on the mechanical and structural properties of chromium carbide coatings with different thicknesses is evaluated. The coatings were deposited by cathodic magnetron sputtering on XC100 steel substrates. Samples were annealed in vacuum, at different temperatures ranging from 700 to 1000°C for 1 h, resulting in the formation of chromium carbides. X-ray diffraction (XRD), microanalysis X/energy-dispersive X-ray spectrometer (EDS), X-rayphotoelectron spectroscopy (XPS) and scanning electron microscopy analysis were used to characterise the samples. Mechanical properties were evaluated by nano-indentation tests and the residual stress was calculated with the Stoney formula. The XRD analysis suggests the formation of the Cr7C3, Cr23C6 carbides at 900°C. For thin films, they transformed totally to ternary (Cr, Fe)7C3 carbides and their partial transformation has been observed in the case of thick films at 1000°C,without the formation of Cr3C2. The EDS and XPS showed the diffusion mechanism between the chromium film and the steel substrate for the Cr, Fe, C, O elements during the annealing treatment.The increase of chromium film thickness from 0.5 to 2.64 μm, contributed to the significant enhancement of mechanical properties such as hardness (H) (from 12 to 26.3 GPa) and Young’s Modulus (E) (from 250 to 330 GPa), respectively. |
| Databáze: | OpenAIRE |
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