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Precipitation in the Fe-38 at.% Al-1 at.% C alloy
- Source :
-
Intermetallics . Jul2010, Vol. 18 Issue 7, p1327-1331. 5p. - Publication Year :
- 2010
-
Abstract
- Abstract: The microstructure and crystallization behavior of a conventionally cast Fe-38 at.% Al-1 at.% C alloy and a set of crystals obtained from this alloy by the Bridgman and the floating-zone methods were investigated. A significant redistribution of elements during crystallization was observed. A two-phase microstructure of the κ-phase in the B2 matrix was found in regions with composition below 37 at.% Al and 0.5 at.% C. A microstructure consisting of the κ-phase and B2 matrix with a limited amount of graphite globules was obtained in the fast-solidified Bridgman sample. An enhanced growth of graphite lathes in the Bridgman crystal was observed at a growth rate of 28 mm h−1. These graphite lathes were oriented parallel to the {100} and {110} planes. The κ-phase precipitates have no orientation relationship with the matrix. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09669795
- Volume :
- 18
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Intermetallics
- Publication Type :
- Academic Journal
- Accession number :
- 51435479
- Full Text :
- https://doi.org/10.1016/j.intermet.2010.03.027