Microstructural and mechanical study of aluminum alloys submitted to distinct soaking times during solution heat treatment



Document title: Microstructural and mechanical study of aluminum alloys submitted to distinct soaking times during solution heat treatment
Journal: Tecnologia em metalurgia, materiais e mineracao
Database: PERIÓDICA
System number: 000404670
ISSN: 2176-1515
Authors:

1
2
2
Institutions: 1Votorantim Metals, Sao Paulo. Brasil
2Universidade Federal Fluminense, Escola de Engenharia Industrial Metalurgica de Volta Redonda, Volta Redonda, Rio de Janeiro. Brasil
Year:
Season: Oct-Dic
Volumen: 11
Number: 4
Pages: 332-339
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Aplicado, descriptivo
English abstract This work studies the microstructural characteristics and mechanical properties for different aluminium alloys (1100, 3104 and 8011) hot rolled sheets that were subjected to a solution heat treatment with distinct soaking times, in order to promote microstructural and mechanical changes on these alloys with solute fractions slightly above the maximum solubility limit. Scanning Electronic Microscopy (SEM) / Energy Dispersive Spectroscopy X-Ray (EDS), X-Ray Diffraction (XRD) and Hardness Tests were employed to observe the microstructural / compositional and mechanical evaluation. For the 1100 and 8011 alloys the more suitable soaking time occur between 1 and 2 hours, and for the 3104 alloy occurs between 2 and 3 hours
Portuguese abstract Este trabalho estuda as características microestruturais e mecânicas de distintas ligas de alumínio (1100, 3104 e 8011) na forma de chapas laminadas a quente que foram submetidas a um tratamento térmico de solubilização com distintos tempos de encharque, de modo a promover modificações microestruturais e mecânicas nestas ligas com percentuais de soluto ligeiramente acima do limite máximo de solubilidade. A avaliação microestrutural/composicional e mecânica foi feita por Microscopia Eletrônica de Varredura (MEV) / Espectroscopia de Energia Dispersiva de Raios-X (EDS), Difração de Raios-X (DRX) e ensaios de durezas. Para as ligas 1100 e 8011 o tempo mais adequado de encharque ocorreu entre 1 e 2 horas, e para a liga 3104, ocorreu entre 2 e 3 horas
Disciplines: Ingeniería
Keyword: Ingeniería metalúrgica,
Aleaciones de alumino,
Microestructuras,
Laminado en caliente,
Tratamiento térmico,
Solubilización
Keyword: Engineering,
Metallurgical engineering,
Aluminum alloys,
Microstructures,
Hot rolling,
Thermal treatment,
Solubilization
Full text: Texto completo (Ver PDF)