| Journal: | Journal of the Brazilian Society of Mechanical Sciences |
| Database: | PERIÓDICA |
| System number: | 000312064 |
| ISSN: | 0100-7386 |
| Authors: | Sagradi, Débora Pulino1 Sagradi, Marcello Martin, Jean-Luc2 |
| Institutions: | 1Universidade Estadual de Campinas, Departamento de Materiais, Campinas, Sao Paulo. Brasil 2Ecole Polytechnique Federale de Lausanne, Departement de Physique, Ecublens, Vaud. Suiza |
| Year: | 2001 |
| Volumen: | 23 |
| Number: | 2 |
| Pages: | 115-122 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | The aim of the present work is to study the noise and vibration damping capacity of ferromagnetic Fe-16%Cr base alloys (before and after heat treatment) with different Al and Mo contents. The noise damping was evaluated by the level of sound emission after an impact. The vibration damping was studied using a cantilever device. In addition to these tests, the magnetic structure of the materials was also investigated by Kerr effect. It was verified that the materials can decrease noise level in the frequency range of human earring. The vibration damping is influenced by heat treatment and chemical composition of the alloy. The improvement of vibration damping after heat treatment is ascribed to the decrease of internal stresses in materials and changes in magnetic domain structures |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería de materiales, Ingeniería metalúrgica, Aleaciones, Hierro, Cromo, Ruido, Vibraciones, Amortiguamiento, Magnetismo, Materiales inteligentes |
| Keyword: | Engineering, Materials engineering, Metallurgical engineering, Alloys, Iron, Chromium, Noise, Vibrations, Damping, Magnetism, Intelligent materials |
| Full text: | Texto completo (Ver HTML) |
