Microstructure and mechanical properties of a 2091 AlLi alloy—I. Microstructure investigated by SAXS and TEM

Autor:	F. Louchet, F Livet, P. Gomiero, Yves Bréchet
Rok vydání:	1992
Předmět:	Materials science Small-angle X-ray scattering Alloy Metallurgy General Engineering Intermetallic engineering.material Microstructure Precipitation hardening Volume fraction engineering Grain boundary Composite material Guinier–Preston zone
Zdroj:	Acta Metallurgica et Materialia. 40:847-855
ISSN:	0956-7151
Popis:	The microstructure of the 2091 alloy (AlLiCuMgZr) alloy has been studied and compared to that of two simpler AlLi and AlCuMg alloys. The SAXS, in situ SAXS and TEM techniques have been used for heat treatments at room temperature and at 150°C. The time evolution of the size and of the volume fraction of the δ′ precipitates and of the Cu-rich GPB zones have been determined. The δ′ precipitates are shown to follow a classical Lifschitz-Slyosov-Wagner law. Their interfacial energy has been estimated. S and S′ precipitates have also been characterized, respectively on grain boundaries and on helical dislocations, by TEM.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::40853bf98062d5836e64513fbe522114 https://doi.org/10.1016/0956-7151(92)90027-c Zobrazit plný text záznamu