MICROSTRUCTURE AND SOLID SOLUBILITY OF RAPIDLY SOLIDIFIED Ag-Tb ALLOY
Tb在快速凝固Ag合金中固溶度扩展

The 0.05--0.08mm thick splat foils of Ag-Tb alloy, containing Tb up to 10 at.-%,were made by the hammer-anvil technique. The cooling rate was in order of 10~6K/s. The me-tastable extension of solid solubility of Tb in the rapidly solidified Ag-Tb alloy was measuredto be up to 5 at.-% by lattice paramter method. The secondary phase in metastable eutecticstructure was identified as Ag_3Tb from diffraction pattern. The microstructure and micro-defect in as-quenched Ag-Tb splat foil were also observed.