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Determination of the phase ranges during cooling and heating of Al‐40wt.%—(0—3) wt.% Mg alloys
Author(s) -
Major B.,
Ciach R.,
Wendrock G.,
Löffler H.
Publication year - 1983
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170180809
Subject(s) - solidus , phase (matter) , materials science , optical microscope , analytical chemistry (journal) , line (geometry) , differential thermal analysis , scattering , metallurgy , crystallography , chemistry , optics , diffraction , scanning electron microscope , chromatography , composite material , alloy , physics , geometry , mathematics , organic chemistry
The various phases and the respective ranges of their existence were determined during continuous cooling from temperatures close below the solidus line to R.T. with a rate of 2 K min −1 as well as during the subsequent heating in few AlZn(40 wt.%)–Mg(X) alloys (X = 0; 0.5; 1.0; and 3.0 wt.%) by means of X‐ray phase‐analysis, small angle X‐ray scattering, differential thermo‐analysis, optical microscopy, and X‐ray micro‐analysis. The most striking features are that even addition of only 0.5 wt.% Mg cause the formation of precursors of the MgZn 2 equilibrium phase few degrees below the solidus line.