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PHASE TRANSFORMATIONS IN Fe-28A1 ALLOYS |
DU Guowei;W ANG Zheng;XIAO Jimei (University of Science and Technology Beijing; 100083) |
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Cite this article:
DU Guowei;W ANG Zheng;XIAO Jimei (University of Science and Technology Beijing; 100083). PHASE TRANSFORMATIONS IN Fe-28A1 ALLOYS. Acta Metall Sin, 1995, 31(4): 151-155.
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Abstract 篢he phase transformations in the Fe-28AI alloys with or without addition of Cr were studied by means of electron microscopy and X-ray diffraction techniques. The B2 antiphase domains (APD) has already been formed during quenching process from 1080℃.The Fe-enriched a-phase may precipitate along the grain boundaries in the alloys when cooling slowly through temperature range of just B2-phase occurred. In the Fe-28A1-5Cr alloy. the fine CrN-phase may also precipitate. The B2→D03 transformation was found to be a slow process in the sheet specimens.
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Received: 18 April 1995
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