| Revista: | Materials research |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312821 |
| ISSN: | 1516-1439 |
| Autores: | Coelho, Rodrigo Estevam1 Gomes, Rodinei Medeiros2 Lima, Severino Jackson Guedes de |
| Instituciones: | 1Centro Federal de Educacao Tecnologica, Salvador, Bahia. Brasil 2Universidade Federal da Paraiba, Centro de Tecnologia, Joao Pessoa, Paraiba. Brasil |
| Año: | 2005 |
| Periodo: | Abr-Jun |
| Volumen: | 8 |
| Número: | 2 |
| Paginación: | 161-163 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Nota breve o noticia |
| Enfoque: | Experimental |
| Resumen en inglés | The effect of heat treatment on crystallization behavior of Fe73.5B15Si10Nb1.5 alloy powder prepared by mechanical alloying was studied. The powder samples were prepared by mechanical alloying (MA) and for different milling times (1, 5, 25, 70 and 100 hours). Crystalline powders of iron, boron, silicon and niobium were sealed with tungsten carbide balls in a cylindrical vial under nitrogen atmosphere. The ball-to-powder weight ratio was 20 to 1. A Fritsch Pulverizette 5 planetary ball mill was used for MA the powders at room temperature and at 250 rpm. To study the microstructural evolution, a small amount of powder was collected after different milling times and examined by X-ray diffraction, using CuKalpha radiation (lambda = 0.15418 nm). The crystallization behavior was studied by differential thermal analysis, from 25 up to 1000 °C at a heating rate of 25 °C min-1 |
| Disciplinas: | Ingeniería |
| Palabras clave: | Ingeniería de materiales, Ingeniería mecánica, Ingeniería metalúrgica, Aleaciones, Tratamiento térmico, Cristalización, Microestructuras |
| Keyword: | Engineering, Materials engineering, Mechanical engineering, Metallurgical engineering, Alloys, Thermal treatment, Crystallization, Microstructures |
| Texto completo: | Texto completo (Ver HTML) |
