| Revue: | Materials research |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312843 |
| ISSN: | 1516-1439 |
| Autores: | Gomes, Geraldo Francisco1 Ueda, Mario Beloto, Antonio Fernando Nakazato, Roberto Zenhei2 Reuther, Helfried3 |
| Instituciones: | 1Instituto Nacional de Pesquisas Espaciais, Cachoeira Paulista, Sao Paulo. Brasil 2Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Engenharia, Guaratingueta, Sao Paulo. Brasil 3Forschungszentrum Rossendorf, Dresden, Sajonia. Alemania |
| Año: | 2005 |
| Periodo: | Oct-Dic |
| Volumen: | 8 |
| Número: | 4 |
| Paginación: | 387-389 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Nota breve o noticia |
| Enfoque: | Experimental |
| Resumen en inglés | SAE 1020 construction steel is widely used as mortar reinforcement and small machine parts, but aside good surface properties as high ductility, hardness and wear resistance, its surface is prone to severe corrosion. As it is known, Chromium in amount over 12%-13% in the Fe alloys renders them resistance to several corrosive attacks. SAE 1020 samples were recovered with Chromium film and then bombarded either by nitrogen Ion Beam (IB) or Plasma Immersion Ion Implantation (PIII) to recoil implant Cr atoms in the Fe matrix. Samples treated by 100 keV N+ IB showed irregular, thin Cr profile, remaining a part of the film on the surface, to about 10 nm. Samples treated by 40 kV N PIII presented Cr layer of about 18% at., ranging to around 90 nm. Cr of the film was implanted in the Fe matrix in an almost flat profile. Results of corrosion test showed good performance of the PIII treated sample. The IB treated sample showed some enhancement over the non-treated reference and the only Cr film deposited sample showed no modification on the corrosion behavior as compared to the non-treated reference sample |
| Disciplinas: | Ingeniería |
| Palabras clave: | Ingeniería mecánica, Ingeniería metalúrgica, Acero, Propiedades mecánicas, Resistencia, Corrosión, Desgaste |
| Keyword: | Engineering, Mechanical engineering, Metallurgical engineering, Steel, Mechanical properties, Resistance, Corrosion, Wear |
| Texte intégral: | Texto completo (Ver HTML) |
