Experimental Investigation of Delta Phase Precipitation in Inconel 625 Superalloy Aged at 550, 625 and 725 degrees C

Página do item simplificado
dc.contributor.authorBaldan, Renato [UNESP]
dc.contributor.authorAraujo Pinto da Silva, Antonio Augusto
dc.contributor.authorTonno, Tiemi Manfia [UNESP]
dc.contributor.authorCosta, Eliara Torres da
dc.contributor.authorNegri Brentegani, Joao Tictor
dc.contributor.authorCouto, Antonio Augusto
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Fed Itajuba UNIFEI
dc.contributor.institutionUniv Presbiteriana Mackenzie
dc.date.accessioned2020-12-10T20:01:09Z
dc.date.available2020-12-10T20:01:09Z
dc.date.issued2020-01-01
dc.description.abstractThe delta is an important stable phase that replaces the metastable gamma '' in the microstructure of Inconel 625 superalloy. The present work aims to investigate the kinetic of delta-phase precipitation in the microstructure of Inconel 625 nickel-based superalloy aged at 550, 625 and 725 degrees C up to 1000 h. Aging temperatures were chosen based on the thermodynamic simulation using JMatPro software which indicated that this phase is stable at temperatures below 905 degrees C. Microstructure of the heat-treated samples was analyzed via SEM/EDS and microhardness evolution was perfonned by Vickers microhardness tests. The results have shown that the samples aged at 550 degrees C (all times), 625 degrees C (all times) and 725 degrees C up to 200 h did not presented microstructural evidences of delta precipitation. However, samples aged at 725 degrees C for 500 and 1000 h clearly presented an acicular delta-phase precipitated mainly at the grain boundaries. It was noted changes in the microhardness at different aging time and temperatures probably due to the presence of gamma '' and/or delta phases. The sample aged at 625 degrees C for 1000 h presented the highest microhardness value (333 +/- 10 HV).en
dc.description.affiliationUniv Estadual Paulista Unesp, Campus Expt Itapeva,Rua Gerald Alckmin 519, BR-18409010 Itapeva, SP, Brazil
dc.description.affiliationUniv Fed Itajuba UNIFEI, Inst Engn Mecan IEM, Ave BPS 1303, BR-37500903 Itajuba, MG, Brazil
dc.description.affiliationUniv Presbiteriana Mackenzie, Escola Engn, Rua Consolacao 930, BR-01302907 Sao Paulo, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista Unesp, Campus Expt Itapeva,Rua Gerald Alckmin 519, BR-18409010 Itapeva, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2018/07802-9
dc.format.extent5
dc.identifierhttp://dx.doi.org/10.1590/1980-5373-MR-2019-0546
dc.identifier.citationMaterials Research-ibero-american Journal Of Materials. Sao Carlos: Univ Fed Sao Carlos, Dept Engenharia Materials, v. 23, n. 1, 5 p., 2020.
dc.identifier.doi10.1590/1980-5373-MR-2019-0546
dc.identifier.fileS1516-14392020000100228.pdf
dc.identifier.issn1516-1439
dc.identifier.scieloS1516-14392020000100228
dc.identifier.urihttp://hdl.handle.net/11449/196942
dc.identifier.wosWOS:000537881500001
dc.language.isoeng
dc.publisherUniv Fed Sao Carlos, Dept Engenharia Materials
dc.relation.ispartofMaterials Research-ibero-american Journal Of Materials
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectInconel 625
dc.subjectdelta phase
dc.subjectaging
dc.subjectmicrostructure
dc.subjectsuperalloy
dc.titleExperimental Investigation of Delta Phase Precipitation in Inconel 625 Superalloy Aged at 550, 625 and 725 degrees Cen
dc.typeArtigo
dcterms.rightsHolderUniv Fed Sao Carlos, Dept Engenharia Materials
unesp.author.orcid0000-0003-4172-3689[1]
unesp.author.orcid0000-0003-3492-4028[2]

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
S1516-14392020000100228.pdf
Tamanho:
1.4 MB
Formato:
Adobe Portable Document Format
Baixar

Coleções

Artigos - Engenharia Industrial Madeireira - Itapeva