The effect of nanocrystallized surface on the tribocorrosion behavior of 304L stainless steel
| Autor: | Nathalie Gey, Zied Antar, Fatma Ben Saada, Pierre Ponthiaux, Khaled Elleuch |
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| Přispěvatelé: | Université de Sfax - University of Sfax, Laboratoire de Génie des Procédés et Matériaux - EA 4038 (LGPM), CentraleSupélec, Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Austenite
Materials science Tribocorrosion Metallurgy Peening 02 engineering and technology Surfaces and Interfaces [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Surfaces Coatings and Films Corrosion 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Ferrite (iron) Martensite Materials Chemistry [CHIM]Chemical Sciences Surface layer 0210 nano-technology Electron backscatter diffraction |
| Zdroj: | Wear Wear, Elsevier, 2018, 394-395, pp.71-79. ⟨10.1016/j.wear.2017.10.007⟩ |
| ISSN: | 0043-1648 |
| DOI: | 10.1016/j.wear.2017.10.007⟩ |
| Popis: | International audience; A nanocrystallized surface layer of around 150 µm thickness was created on AISI 304L by nano-scale surface peening. Electron back scattered diffraction (EBSD) has revealed that the upper layer of the nanocrystallized surface was formed by nanosized ferrite grains. However, bottom layer was compounded from martensite and deformed austenite. Tribocorrosion behavior of the nanocrystallized surface against alumina was investigated in a mixture of olive pomace and tap water filtrate. Nanopeened 304L was more sensitive to tribocorrosion under intermittent sliding than continuous one due to depassivation/repassivation phenomena. Mechanical and corrosion wear components were quantified. Tribocorrosion mechanism was dominated by abrasion mechanical removal of the uncovered surface. The wear resistance of AISI 304L surface was markedly improved by treatment. That improvement could be explained by the higher hardness of nanocrystallized AISI 304L. |
| Databáze: | OpenAIRE |
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