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Age-Hardening and Precipitation Phenomena in the Inconel-713C Superalloy Studied by Means of Positron Lifetime Spectroscopy

1999; Wiley; Volume: 174; Issue: 1 Linguagem: Inglês

10.1002/(sici)1521-396x(199907)174

1521-396X

A. Somoza, Givanildo Alves dos Santos, A. Ges, R. Versaci, F. Plazaola,

Advanced Materials Characterization Techniques

physica status solidi (a)Volume 174, Issue 1 p. 189-198 Original Paper Age-Hardening and Precipitation Phenomena in the Inconel-713C Superalloy Studied by Means of Positron Lifetime Spectroscopy A. Somoza, A. Somoza Instituto de Física de Materiales Tandil - IFIMAT, Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399, 7000 Tandil and Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, ArgentinaSearch for more papers by this authorG. Santos, G. Santos Instituto de Física de Materiales Tandil - IFIMAT, Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399, 7000 Tandil and Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, ArgentinaSearch for more papers by this authorA. Ges, A. Ges Instituto de Física de Materiales Tandil - IFIMAT, Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399, 7000 Tandil and Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, ArgentinaSearch for more papers by this authorR. Versaci, R. Versaci Departamento de Materiales, Comisión Nacional de Energía Atómica, Avda. del Libertador 8250, 1429 Buenos Aires, ArgentinaSearch for more papers by this authorF. Plazaola, F. Plazaola Elektrika eta Elektronika Saila, Euskal Herriko Unibertsitatea, 644 p.k., E-48080 Bilbo, SpainSearch for more papers by this author A. Somoza, A. Somoza Instituto de Física de Materiales Tandil - IFIMAT, Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399, 7000 Tandil and Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, ArgentinaSearch for more papers by this authorG. Santos, G. Santos Instituto de Física de Materiales Tandil - IFIMAT, Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399, 7000 Tandil and Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, ArgentinaSearch for more papers by this authorA. Ges, A. Ges Instituto de Física de Materiales Tandil - IFIMAT, Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399, 7000 Tandil and Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, ArgentinaSearch for more papers by this authorR. Versaci, R. Versaci Departamento de Materiales, Comisión Nacional de Energía Atómica, Avda. del Libertador 8250, 1429 Buenos Aires, ArgentinaSearch for more papers by this authorF. Plazaola, F. Plazaola Elektrika eta Elektronika Saila, Euskal Herriko Unibertsitatea, 644 p.k., E-48080 Bilbo, SpainSearch for more papers by this author First published: 22 July 1999 https://doi.org/10.1002/(SICI)1521-396X(199907)174:1 3.0.CO;2-YCitations: 8AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract Specimens of the commercial superalloy Inconel-713C were heat treated by using isothermal artificial ageing treatments in order to obtain information on the process of precipitation of the γ′-phase which is an intermetallic compound with a composition of Ni3(Al, Ti) having a L12-ordered structure. The experimental information was basically obtained by means of positron lifetime spectroscopy and Vickers microhardness. In some specific cases, transmission electron microscopy was also used. From the positron results it was possible to analyze the influence of the homogenization and quenching procedures on the microstructure and to follow the coarsening of the smallest γ′-particles during the very early stage of artificial ageing at 950 °C. For long ageing times, when the overageing condition of the superalloy was clearly observed by a hardness decrease, the positron lifetime evolution reaches a stable maximum value and different annihilation mechanisms were discussed. Citing Literature Volume174, Issue1July 1999Pages 189-198 RelatedInformation