Lourenco, C. Dos Santos [UNESP]Cilense, M. [UNESP]Garlipp, W. [UNESP]2014-05-272014-05-271991-03-01Physica Status Solidi (A) Applied Research, v. 124, n. 1, 1991.0031-8965http://hdl.handle.net/11449/130557The Inoue procedure is used to study the influence of Cr and Cu elements, jointly or individually, on the matrix decomposition of quenched Al-Zn-Mg alloys. The addition of copper and copper with chromium does not significantly change the limits of the temperatures of formation of Guinier-Preston zone and the range of the matrix decomposition. The control of the vacancy concentration in the alloys by different heat treatments and the addition of certain elements such as copper and chromium seems to play an important role in the nucleation rate and the kinetics of phase transformations.K11-K14engHeat Treatment - QuenchingMetallography - TransformationsGuinier-Preston ZoneMatrix DecompositionAluminum Zinc Magnesium AlloysArtigo10.1002/pssa.2211240139WOS:A1991FP07900038Acesso restrito2-s2.0-00261225669128353103083394