Solution and aging of MAR-M246 nickel-based superalloy

dc.creatorBALDAN, RENATO
dc.creatorSILVA, ANTONIO A.A.P.
dc.creatorNUNES, CARLOS A.
dc.creatorCOUTO, ANTONIO A.
dc.creatorGABRIEL, SINARA B.
dc.creatorALKMIN, LUCIANO B.
dc.date2017
dc.date2017-10-16T17:08:52Z
dc.date2017-10-16T17:08:52Z
dc.date.accessioned2023-09-28T14:04:04Z
dc.date.available2023-09-28T14:04:04Z
dc.identifier1059-9495
dc.identifierhttp://repositorio.ipen.br/handle/123456789/27911
dc.identifier2
dc.identifier26
dc.identifier10.1007/s11665-016-2462-0
dc.identifier29.649
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8998165
dc.descriptionSolution 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.
dc.format465-471
dc.relationJournal of Materials Engineering and Performance
dc.rightsopenAccess
dc.subjectheat resisting alloys
dc.subjectpolycrystals
dc.subjectaging
dc.subjectmicrostructure
dc.subjectsolutions
dc.subjectheat treatments
dc.subjectnickel alloys
dc.subjecthardness
dc.titleSolution and aging of MAR-M246 nickel-based superalloy
dc.typeArtigo de peri??dico
dc.coverageI


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