Microstructural Investigation of Co-rolled Nanocrystalline Stainless Steel SheetsReportar como inadecuado




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1 ICD - Institut Charles Delaunay 2 Electron Microscope Unit 3 School of Materials Science and Engineering 4 ThM2 - ThermoMécanique des Matériaux LMGC - Laboratoire de Mécanique et Génie Civil

Abstract : It is possible to produce a nanocrystalline, multilayered composite structure with enhanced mechanical properties by assembling three 316L surface nanostructured stainless steel plates by roll bonding. The Surface Mechanical Attrition Treatment SMAT was first used to generate nanocrystalline layers on the elementary plates so that their mechanical properties were improved. They were then assembled through co-rolling. A composite structure of nanocrystalline layers of high strength alternating with more ductile layers was obtained to achieve both high strength and ductility. Microscopy observations and EBSD measurements were carried out and the bonding interfaces were analysed in detail to explore the mechanisms involved during the SMAT-Co-rolling duplex process.

Keywords : SMAT Roll-bonding Grain refinement Nanocrystallized material Multilayered structure Electron backscatter diffraction EBSD





Autor: Delphine Retraint - Zakaria Quadir - Wanqiang Xu - Laurent Waltz - Michael Ferry -

Fuente: https://hal.archives-ouvertes.fr/



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