Hardness, Microstructure and Strain Distributions in Commercial Purity Aluminum Processed by Multi Directional Forging (MDF)
| Autor: | Maria Teresa Paulino Aguilar, Paulo Roberto Cetlin, Pedro Malaquias Araujo Stemler, Natanael Geraldo Silva Almeida, Pedro Henrique R. Pereira, Cleber Granato de Faria |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Mechanical Engineering chemistry.chemical_element Multi Directional Forging Condensed Matter Physics Microstructure Distribution of strain and microhardness Indentation hardness Finite element method Forging chemistry Mechanics of Materials Aluminium TA401-492 General Materials Science Severe Plastic Deformation Microstructures Elongation Severe plastic deformation Composite material Deformation (engineering) Materials of engineering and construction. Mechanics of materials Aluminum |
| Zdroj: | Materials Research v.23 n.4 2020 Materials research (São Carlos. Online) Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL Materials Research, Vol 23, Iss 4 (2020) Materials Research, Volume: 23, Issue: 4, Article number: e20200262, Published: 02 SEP 2020 |
| ISSN: | 1980-5373 1516-1439 |
| DOI: | 10.1590/1980-5373-mr-2020-0262 |
| Popis: | Severe plastic deformation (SPD) of metals leads to their strengthening and grain refinement, but to low uniform elongations. Low Strain Amplitude Multi Directional Forging (LSA-MDF) is an important method for increasing this low uniform elongation. The application of workpieces of SPD-processed materials requires that their distributions of mechanical properties, microstructures and deformation be as homogeneous as possible. Analyses of these distributions after LSA-MDF have not been found in the literature, and are presented in the current investigation utilizing microhardness measurements, optical and electronic microscopy and finite element simulations. LSA-MDF causes higher strains, mcrohardeness and structural distortions in the central regions of the specimens than at their edges and corners. In addition, LSA-MDF utilizing confined compressions seems to be the preferred processing route, due to its ease and to the more homogeneous microhardness, microstructure and strain distributions in relation to other experimental procedures. |
| Databáze: | OpenAIRE |
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