Magnesium phase diagrams

Magnesium (Mg), 15 320-381. See also Aluminum— magnesium phase diagram Aluminum-magnesium- zinc phase diagram MgB2 entries activated, 12 835 analytical methods for, 15 348 atmospheric exposures of, 15 369 beer as dietary source of, 3 588 behavior on contact with chemicals, 15 372t... 

Of the generic aluminium alloys (see Chapter 1, Table 1.4), the 5000 series derives most of its strength from solution hardening. The Al-Mg phase diagram (Fig. 10.1) shows why at room temperature aluminium can dissolve up to 1.8 wt% magnesium at equilibrium. In practice, Al-Mg alloys can contain as much as 5.5 wt% Mg in solid solution at room temperature - a supersaturation of 5.5 - 1.8 = 3.7 wt%. In order to get this supersaturation the alloy is given the following schedule of heat treatments. 

Fig. 20.41 (a) Silver-copper phase. diagram and (b) magnesium-tin phase diagram... 

Present production processes use two stage counter-current extraction to remove americium from molten plutonium with magnesium chloride based salts. Both 35 mole % NaCl - 35 mole % KC1 - 3D mole % MgCl2 and 50 mole % NaCl-26 mole % CaCl2 - 24 mole % Mg Cl 2 are used for americium extraction. Figures 4 and 5 show the ternary phase diagrams for these salt systemsU0). 

Phase diagram studies of the magnesium-al uminum-zinc system have shown that there exists a ternary phase, which has been given the name A phase or T phase (Egar, 1913 Koster Wolf, 1936 Koster ... 

Phase Diagrams, Intermetallic Phases and Compounds 7.3.3.I.2. Magnesium Systems. 

Phase diagrams for the systems calcium/ magnesium and H20/HF formation of one and three compounds, respectively... 

Aluminum—magnesium—zinc phase diagram Magnesium—zinc phase... 

Figure 4.17. The binary phase diagrams of the magnesium alloy systems with the divalent metals ytterbium and calcium (Ca is a typical alkaline earth metal and Yb one of the divalent lanthanides). Notice, for this pair of metals, the close similarity of their alloy systems with Mg. The compounds YbMg2 and CaMg2 are isostructural, hexagonal hP12-MgZn2 type.

Figure 16.2. Some phase diagrams, (a) The water end of the system potassium chloride and water, (b) The water end of the system sodium chloride and water, (c) The water end of the system magnesium sulfate and water the heptahydrate goes to the mono at 150°C, and to anhydrous at 200°C. (d) /3-methylnaphthalene and /S-chloronaphthalene form solid solutions, (e) Mixtures of formamide and pyridine form a simple eutectic, (f) These mixtures form binary eutectics at the indicated temperatures and a ternary eutectic at mol fractions 0.392 dibenzyl, 0.338 diphenyl, and 0.27 naphthalene.

Fig. 3.—Phase Diagrams of Two Ternary Systems Amylose-Magnesium Sulfate-Water (Solid Curves) and Amylopectin-Magnesium Sulfate-Water (Dotted Curves).

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