Influence of powder mixing method on properties of high entropy alloys of FeCrMnAlMo thin coatings obtained by magnetron sputtering
| Autor: | Y.Y. Santana, M.A. Sow, C. Nouvellon, C. Cordier, F. Beclin, M. Touzin, A. Tromont, X. Noirfalise, L. Boilet, J.F. Trelcat, M. Dubar, H. Morvan, M. Bigerelle |
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| Přispěvatelé: | Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 (LAMIH), Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-INSA Institut National des Sciences Appliquées Hauts-de-France (INSA Hauts-De-France), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Unité Matériaux et Transformations - UMR 8207 (UMET), Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Reciprocating dry sliding wear
Materials Chemistry Powder target sintered [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] High entropy alloys Surfaces and Interfaces General Chemistry [CHIM.MATE]Chemical Sciences/Material chemistry Condensed Matter Physics Thin coatings Magnetron sputtering Nanoindentation Surfaces Coatings and Films |
| Zdroj: | Surface and Coatings Technology Surface and Coatings Technology, 2022, Surface and Coatings Technology, 446, pp.128744. ⟨10.1016/j.surfcoat.2022.128744⟩ |
| ISSN: | 0257-8972 1879-3347 |
| Popis: | International audience; High Entropy Alloys of FeCrMnAlMo thin coatings obtained by magnetron sputtering were studied. The influence of the powder mixing method to obtain the targets used in the physical vapor deposition reactors was evaluated concerning the mechanical and tribological properties of the coatings. The microstructural characterization was also performed. The high purity element powders of 34Fe-22Cr-19Mn-19Al-6Mo were mixed in two ways: mechanically alloyed for 35 h (MS coating) and the other by conventional mixing for 30 min (CM coating). The coatings showed a poorly crystallized structure, almost amorphous. X-ray photoelectron spectrometry results evidenced that the MS coating contains approximately 8 at.% C, while no carbon was detected in the CM coating. The coatings presented hardness values determined by nanoindentation of ~8.7 GPa and 7.4 GPa for MS and CM coatings, respectively. A better reciprocating dry sliding wear resistance with specific wear rate (k) of ~3.33 × 10−5 mm3 N−1 m−1 for MS coating/substrate system was found, while for the CM coating/substrate system was of ~8.23 × 10−5 mm3 N−1 m−1. The abrasive wear mechanism was observed with the formation of ploughing, scratching and debris wear adhered to the alumina counterpart ball. |
| Databáze: | OpenAIRE |
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