Masaji Fukusima1, Saburô Mitui1
The solubilities of hydrogen in binary alloys, whose equilibrium diagrams are of simple and typical types, such as a single (Cu-Ni system) or two series of solid solution (Fe-Co system) or a mixture of two saturated solid solutions (Co-Cu system) or of two phases lying between compounds (Ni-Sb system), were measured, and the results were explained with the aid of equilibrium diagrams. The conclusions reached are as follows: -
Solubilities of hydrogen in the alloy forming a single series of solid solution change with the variation of composition, indicating a continuous curve with or without a maximum point, while those in the alloy forming a mixture of two phases change in a linear relation with a change of composition, and also the solubility curves abruptly change by the transformation or indicate a broken point at the composition of a stable compound.
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