Texture, Microstructure, and Surface Mechanical Properties of AZ31 Magnesium Alloys Processed by ECASD
| Autor: | Raul Eduardo Bolmaro, Emigdio José Mendoza Fandiño, Vanina Mercedes Tartalini, Patricia Fernández Morales, M. Avalos, Pablo Risso |
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| Rok vydání: | 2017 |
| Předmět: |
Diffraction
Materials science chemistry.chemical_element INGENIERÍAS Y TECNOLOGÍAS 02 engineering and technology 01 natural sciences ECASD DE-TWINNING Ingeniería de los Materiales 0103 physical sciences General Materials Science 010302 applied physics Magnesium Metallurgy 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure chemistry Knoop hardness test Hardening (metallurgy) SPD 0210 nano-technology Crystal twinning AZ31B alloy MGAZ31B Electron backscatter diffraction |
| Zdroj: | Advanced Engineering Materials. 20:1700228 |
| ISSN: | 1438-1656 |
| Popis: | The current work presents the results on Mg AZ31B alloy sheets subject to four passes using Equal Channel Angular Sheet Drawing (ECASD) at various temperatures (25, 100, and 200°C). Textures are determined by laboratory X-ray diffraction and EBSD. EBSD allows the evaluation of the evolution of crystal sizes in function of the distance to the surface and the presence of twinning. Twinning is evident by the analysis of the textures, which show mainly two components, one due to the spin induced by the shearing of ECASD and the other one as a direct product of twinning. Micro-hardness, by Knoop tests on the lateral face of the sheets, are performed, allowing the determination of the influence of SPD on the hardness from surface to surface, going through the center of the sheet. Almost 50% increase on hardening, with respect to the non-processed material, is obtained near to the surface after four and six passes. The effectiveness as a hardening technique declined after the first four passes. Fil: Fandiño, Emigdio Mendoza. Universidad Pontificia Bolivariana; Colombia Fil: Bolmaro, Raul Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina Fil: Risso, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina Fil: Tartalini, Vanina Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina Fil: Fernández Morales, Patricia. Universidad Pontificia Bolivariana; Colombia Fil: Avalos, Martina Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina |
| Databáze: | OpenAIRE |
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