Solution and aging of MAR-M246 nickel-based superalloy
Carregando...
Data
Data de publicação
Autores IPEN
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
Journal of Materials Engineering and Performance
Exportar
Resumo
Solution and aging heat-treatments play a key role for the application of the superalloys. The aim of this
work is to evaluate the microstructure of the MAR-M246 nickel-based superalloy solutioned at 1200 and
1250 C for 330 min and aged at 780, 880 and 980 C for 5, 20 and 80 h. The c¢ solvus, solidus and liquidus
temperatures were calculated with the aid of the JMatPro software (Ni database). The as-cast and heattreated
samples were characterized by SEM/EDS and SEM-FEG. The c¢ size precipitated in the aged
samples was measured and compared with JMatPro simulations. The results have shown that the sample
solutioned at 1250 C for 330 min showed a very homogeneous c matrix with carbides and cubic c¢
precipitates uniformly distributed. The mean c¢ size of aged samples at 780 and 880 C for 5, 20 and 80 h
did not present significant differences when compared to the solutioned sample. However, a significant
increasing in the c¢ particles was observed at 980 C, evidenced by the large mean size of these particles
after 80 h of aging heat-treatment.
Como referenciar
BALDAN, RENATO; SILVA, ANTONIO A.A.P.; NUNES, CARLOS A.; COUTO, ANTONIO A.; GABRIEL, SINARA B.; ALKMIN, LUCIANO B. Solution and aging of MAR-M246 nickel-based superalloy. Journal of Materials Engineering and Performance, v. 26, n. 2, p. 465-471, 2017. DOI: 10.1007/s11665-016-2462-0. Disponível em: http://repositorio.ipen.br/handle/123456789/27911. Acesso em: 24 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.