MICROSTRUCTURE AND SOLID SOLUBILITY OF RAPIDLY SOLIDIFIED Ag-Tb ALLOY

Acta Metall Sin

1990, Vol. 26

Issue (5): 147-149 DOI:

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MICROSTRUCTURE AND SOLID SOLUBILITY OF RAPIDLY SOLIDIFIED Ag-Tb ALLOY

NING Yuantao;ZHOU Xinming;LI Yongnian Kunming Institute of Precious Metals

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NING Yuantao;ZHOU Xinming;LI Yongnian Kunming Institute of Precious Metals. MICROSTRUCTURE AND SOLID SOLUBILITY OF RAPIDLY SOLIDIFIED Ag-Tb ALLOY. Acta Metall Sin, 1990, 26(5): 147-149.

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Abstract 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.

Key words: rapid solidification Ag-Tb alloy solid solubility

Received: 18 May 1990

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