Surface hardening treatment of Fe40(CoCrMnNi)60 medium entropy alloy via aerosol deposition technique: A new approach
| Autor: | Nokeun Park, Woogyun Shin, Jungho Ryu, Timothy Alexander Listyawan, Keun-Hyo Lee, Ajeet Kumar, Heedong Do |
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| Rok vydání: | 2020 |
| Předmět: |
Microstructural evolution
Materials science Mechanical Engineering Alloy Treatment method 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences 0104 chemical sciences Aerosol deposition Mechanics of Materials engineering Entropy (information theory) General Materials Science Severe plastic deformation Composite material 0210 nano-technology Case hardening |
| Zdroj: | Materials Letters. 269:127633 |
| ISSN: | 0167-577X |
| Popis: | A novel approach of surface hardening treatment by aerosol deposition (AD) process was utilized on Fe40(CoCrMnNi)60 medium entropy alloy (MEA). Severe plastic deformation was successfully applied by AD treatment in the near-surface area of the specimens. Accordingly, cross-section analysis of microstructure revealed a gradient structure profile along with the depth from the top surface with the applied AD treatment. The near-surface area exhibited a high number of dislocation densities up to 1.32 × 1015 m−2 leading to a significant hardness improvement of up to 74% compared to the untreated specimen. The present work discovered the feasibility of the AD process as a suitable option of surface hardening treatment methods in improving the mechanical properties through microstructural evolution. |
| Databáze: | OpenAIRE |
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