Medium-Frequency Electrical Resistance Sintering of Soft Magnetic Powder Metallurgy Iron Parts
| Autor: | Jesús Cintas, Juan Manuel Montes, Fátima Ternero, Raquel Astacio, Francisco Gómez Cuevas |
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| Přispěvatelé: | Universidad de Sevilla. Departamento de Ingeniería y Ciencia de los Materiales y del Transporte, Universidad de Sevilla. TEP971: Ingeniería de Materiales Avanzados, Ministerio de Economía y Competitividad (MINECO). España, European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Mining engineering. Metallurgy 020502 materials Iron Metallurgy Metals and Alloys TN1-997 Sintering 02 engineering and technology 021001 nanoscience & nanotechnology Soft magnetic materials Iron powder Vacuum furnace Medium frequency electrical resistance sintering 0205 materials engineering Electrical resistance and conductance Electrical resistivity and conductivity Powder metallurgy 23 Química General Materials Science Electric current 0210 nano-technology Porosity |
| Zdroj: | Metals, Vol 11, Iss 994, p 994 (2021) Arias Montano. Repositorio Institucional de la Universidad de Huelva instname idUS. Depósito de Investigación de la Universidad de Sevilla Metals Volume 11 Issue 6 |
| Popis: | The fabrication of soft magnetic Fe parts by the medium-frequency electrical resistance sintering (MF-ERS) technique is studied in this paper. This consolidation technique involves the simultaneous application to metallic powders of pressure and heat, the latter coming from the Joule effect of a low-voltage and high-intensity electric current. Commercially pure iron powder was used in the consolidation experiences. The porosity distribution, microhardness, electrical resistivity and hysteresis curves of the final compacts were determined and analysed. The results obtained were compared both with those of compacts consolidated by the conventional powder metallurgy (PM) route of cold pressing and vacuum furnace sintering, and with fully dense compacts obtained by double cycle of cold pressing and furnace sintering in hydrogen atmosphere Financial support of the Ministerio de Economía y Competitividad (Spain) and Feder (EU) through the research projects DPI2015-69550-C2-1-P and DPI2015-69550-C2-2-P is gratefully acknowledged The authors also wish to thank the technicians J. Pinto, M. Madrid and M. Sánchez (University of Seville, Spain) for experimental assistance |
| Databáze: | OpenAIRE |
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