X射线衍射(XRD)表明室温下几乎不固溶的Fe—Cu系经5h球磨后可形成亚稳过饱和固溶体.对于Fe_(1-x)Cu_x,当0≤x≤0.10时形成单一的bcc相,x≥0.30时形成单一的fcc相,0.10 At room temperature Fe and Cu form almost no solid solution in equilibriumphase diagram but X-ray diffraction and DTA show that the metastableFe_(1-x)Cu_x supersaturated solid solution can be obtained after 5 h of ball-milling of the mixedFe and Cu powders. The bcc phase is extended over the region with x≤0.10, while the fccphase with x≥0.30. For 0.10
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