期刊
MATERIALS TRANSACTIONS
卷 60, 期 2, 页码 338-345出版社
JAPAN INST METALS
DOI: 10.2320/matertrans.M2018255
关键词
melt-spun; sideband; Cu-Ti alloy; spinodal decomposition; solid solubility extension
We have examined solid solubility extension for melt-spun Cu-Ti alloys (4, 6, 7, and 8 mass% Ti) in comparison with that for conventional quenched alloys. X-ray diffraction (XRD) measurements revealed that the solid solubility extension for the melt-spun alloys was in the range of 7-8 mass% Ti, whereas that for quenched alloys was less than 6 mass% Ti. After annealing the melt-spun alloys at 673 K, the XRD measurements revealed sidebands with no intermetallic compound peaks, bright-field transmission electron microscopy images showed modulated structures, and selected-area diffraction patterns exhibited satellite structures; taken together, these experimental results confirm the occurrence of spinodal decomposition. In this study, however, distinct superlattice reflections were not observed.
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