Order-Disorder Transformation in Alloys under High Pressure
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概要
- 論文の詳細を見る
Effects of high pressure on the order-disorder transformation have been investigated by means of X-ray diffraction and electrical resistivity measurement on the four kinds of binary alloys. It has been shown that pressure not only shifts the critical temperature of the transformation (CuAu, CuPt, AgZn) but also the homogeneity range in which ordered phase forms (Cu_6Pd_4). The ordered phase with long period, CuAuII, becomes less stable with increasing pressure and the one with the simple Ll_0 structure, CuAuI, undergoes a direct transition into the disordered FCC phase at the pressures in excess of 60 kbar. For AgZn the ordered ζ phase with a trigonal symmetry loses its stability and the transformation changes into the type of β' (B2)-β(BCC), commonly observed in the BCC alloys with the equiatomic composition.
- 東北大学の論文
著者
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IWASAKI HIROSHI
The Research Institute for Iron, Steel and Other Metals Tohoku University
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Iwasaki Hiroshi
The Research Instisuse For Iron Steel And Other Metals Tohoku University
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