Morphology of ordering Fe-Si alloys

被引：0
|
作者：
Y. Ustinovshikov
I. Sapegina
机构：
[1] Physical-Technical Institute (Ural Branch of Russian Academy of Sciences),
来源：
Journal of Materials Science | 2004年 / 39卷
关键词：
Polymer; Microstructure; Electron Microscopy; Transmission Electron Microscopy; Phase Diagram;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The microstructure of some Fe-Si alloys water-quenched from 700–1200°C and aged at 550–675°C for various times has been studied by means of transmission electron microscopy (TEM). It has been shown that at temperatures of 700°C and above the microstructure of the alloy is a solid solution with two-dimensional particles of a B2 ordered phase. These particles have a FeSi composition and lie along (100) planes of the matrix. At temperatures of 675°C and below a modulated microstructure is formed; in its enriched modulations the composition of the Fe3Si phase is attained and D03 ordering occurs. Phase composition of some high-silicon alloys has been determined by X-ray diffraction phase analysis. It corresponds to α + B2 or α + D03. These results are plotted on the accepted Fe-Si phase diagram.
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页码：1007 / 1016
页数：9
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