Abstract
To contribute to the understanding of the Al-Fe-Mn-Si system, an exhaustive analysis of the intermetallic phases formed during thermal analysis experiments and specific isothermal treatments was carried out. In this work, three different phases were identified: the extensively reported β and α phases and the τh phase. The τh phase has been reported for the ternary Al-Fe-Si system, but not for the quaternary Al-Fe-Mn-Si system. Nonetheless, the present results suggest that the formation of the τh phase upon solidification of the alloy can be stabilized in the quaternary Al-Fe-Mn-Si system, with respect to the monoclinic θ-Al3Fe phase in the ternary Al-Fe-Si system, due to the Mn addition. The τh phase was unambiguously identified with the help of complementary techniques such as SEM/EDS, X-ray diffraction and Mössbauer spectroscopy.
Original language | English |
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Pages (from-to) | 1617-1622 |
Number of pages | 6 |
Journal | Intermetallics |
Volume | 18 |
Issue number | 8 |
DOIs | |
State | Published - Aug 2010 |
Bibliographical note
Funding Information:The authors are grateful to the National Council for Science and Technology of Mexico (Conacyt) for the financial support provided to carry out this work (project no. 84966 ).
Keywords
- A. Aluminides
- B. Crystallography
- C. Crystal growth
- F. Diffraction
- Phase identification