1. Solubility of hydrogen in aluminum

Hydrogen solubility in aluminum alloys depends on three factors:

temperature ;
the composition of the atmosphere in contact with the alloy;
alloy composition.

1.1 Effect of temperature

This is undoubtedly the factor with the greatest influence on gassing problems. The solubility of hydrogen in pure aluminum, expressed in Ncm ³ /100 g, varies as shown in figure 1 . An abrupt discontinuity appears during solidification. Aluminum is capable of dissolving twenty...

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Solubility of hydrogen in aluminum

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page Gases in foundry aluminum alloys

Origin of gassing. Hydrogen sources

References

(1) - RANSLEY (C.E.), NEUFELD (H.) - The solubility of hydrogen in liquid aluminium. - J. Inst. of Met, vol. 74, p. 559-620 (1947-1948).
(2) - SIGWORTH (G.K.) - Scientific basis for degassing aluminum. - AFS Trans. 81, p. 73‐78 (1987).