On the effect of interrupted ageing (T6I4) on the mechanical properties of AA6351 and AA7050 alloys. (2021)
- Authors:
- USP affiliated authors: BAPTISTA, CARLOS ANTONIO REIS PEREIRA - EEL ; BARBOZA, MIGUEL JUSTINO RIBEIRO - EEL ; ANTUNES, ANA MARCIA BARBOSA DA SILVA - EEL ; CARVALHO, ANDRE LUIS MOREIRA DE - EESC
- Unidades: EEL; EESC
- DOI: 10.1590/0370-44672019740154
- Subjects: LIGAS METÁLICAS; MECÂNICA DA FRATURA
- Agências de fomento:
- Language: Inglês
- Abstract: The mechanical properties of age-hardenable aluminum alloys are strongly influ enced by the volume fraction, size and spacing of hardening precipitates. In addition, researches have shown that interrupted ageing (T6I4) could benefit the hardening re sponse of these alloys. Interrupted ageing is a term generally used for the microstruc tural development process of an alloy aged at a reduced temperature after partially aged at a higher temperature. Thus, this process produces a change in the mechanical properties of the alloy. In this study, the precipitate structures and mechanical proper ties of AA6351 and AA7050 alloys were investigated. Transmission electron micros copy analyses of the hardening precipitates were carried out. Hardness and tensile properties were performed to compare the effect of disrupted ageing on AA6351-T6 / AA6351-T6I4 and AA7050-T7451 / AA7050-T6I4 alloys. AA6351-T6I4 showed a higher volumetric fraction of hardening precipitates with heterogeneous size and resis tance lower than AA6351-T6. In addition, AA7050-T6I4 showed a higher volumetric fraction of hardening precipitates with smaller size and similar resistance to AA7050- T7451. However, in both cases, interrupted ageing contributed to increase ductility and toughness.
- Imprenta:
- Publisher place: Ouro Preto
- Date published: 2021
- Source:
- Título: REM - International Engineering Journal
- ISSN: 0370-4467
- Volume/Número/Paginação/Ano: v. 74, n.1, p. 67-73
- Este periódico é de acesso aberto
- Este artigo é de acesso aberto
- URL de acesso aberto
- Cor do Acesso Aberto: gold
- Licença: cc-by
-
ABNT
ANTUNES, Ana Márcia Barbosa da Silva et al. On the effect of interrupted ageing (T6I4) on the mechanical properties of AA6351 and AA7050 alloys. REM - International Engineering Journal, v. 74, n. 1, p. 67-73, 2021Tradução . . Disponível em: https://doi.org/10.1590/0370-44672019740154. Acesso em: 31 dez. 2025. -
APA
Antunes, A. M. B. da S., Baptista, C. A. R. P., Barboza, M. J. R., & Carvalho, A. L. M. de. (2021). On the effect of interrupted ageing (T6I4) on the mechanical properties of AA6351 and AA7050 alloys. REM - International Engineering Journal, 74( 1), 67-73. doi:10.1590/0370-44672019740154 -
NLM
Antunes AMB da S, Baptista CARP, Barboza MJR, Carvalho ALM de. On the effect of interrupted ageing (T6I4) on the mechanical properties of AA6351 and AA7050 alloys. [Internet]. REM - International Engineering Journal. 2021 ; 74( 1): 67-73.[citado 2025 dez. 31 ] Available from: https://doi.org/10.1590/0370-44672019740154 -
Vancouver
Antunes AMB da S, Baptista CARP, Barboza MJR, Carvalho ALM de. On the effect of interrupted ageing (T6I4) on the mechanical properties of AA6351 and AA7050 alloys. [Internet]. REM - International Engineering Journal. 2021 ; 74( 1): 67-73.[citado 2025 dez. 31 ] Available from: https://doi.org/10.1590/0370-44672019740154 - Effect of the interrupted aging heat treatment T6I4 on the tensile properties and fatigue resistance of AA7050 alloy
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Informações sobre o DOI: 10.1590/0370-44672019740154 (Fonte: oaDOI API)
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