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| AN ELECTRON DIFFRACTION ANALYSIS OF δ-PHASE IN A Ni-Fe-Cr-Nb ALLOY |
| by LI Yuqing; LIU Jingyan (Research Institute of Daye Steel Works) |
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Cite this article:
by LI Yuqing; LIU Jingyan (Research Institute of Daye Steel Works). AN ELECTRON DIFFRACTION ANALYSIS OF δ-PHASE IN A Ni-Fe-Cr-Nb ALLOY. Acta Metall Sin, 1983, 19(3): 44-53.
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Abstract According to the matrix analysis of electron diffraction patterns and to the analysis and calculation of structure amplitude for ordered structure δ-phase, the confirmation was made of that the δ-phase of the Widmanst(?)tten structure in Ni-Fe-Cr-Nb alloy grain is identical with the orientation relationship and formation mechanism shown by Ⅰ. Kirman and others. But certain δ-phase of cellular structure does not have such relationship and there is yet some imperfectly regular ones. It was also found that the Ni and Nb atoms may be imperfectly distributed in order within some cellular δ-phase.
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Received: 18 March 1983
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1 Kirman, I.; Warrington, D. H., Metall. Trans., 1 (1970) , 2667．
2 李玉清;刘锦岩,金属学报,16(1980) ,245．
3 Kirman, I., J. Iron Steel Inst., 207 (1969) , 1612．
4 Frantz, C.; Gantols, M., The Microstrueture and Design of Alloys, Proc. 3rd Int. Conf. on the Strength of Metals and Alloys, Vol. 1, Cambridge, England, 1973, p. 331．
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