Effect of iron addition on the crystal structure of the α-AlFeMnSi phase formed in the quaternary Al-Fe-Mn-Si system

Authors

  • P. Orozco-González Facultad de Ingeniería, Universidad Autónoma de Zacatecas
  • M. Castro-Román CINVESTAV-Saltillo
  • J. López-Cuevas CINVESTAV-Saltillo
  • A. Hernández-Rodríguez CINVESTAV-Saltillo
  • R. Muñiz-Valdez Facultad de Ingeniería, Universidad Autónoma de Coahuila
  • S. Luna-Álvarez Facultad de Ingeniería, Universidad Autónoma de Coahuila,
  • C. Ortiz-Cuellar Facultad de Ingeniería, Universidad Autónoma de Coahuila

DOI:

https://doi.org/10.3989/revmetalm.1068

Keywords:

Aluminum alloys, Intermetallic Al-Fe-Mn-Si phases, X-ray analysis diffraction, Crystal structure type

Abstract


Cubic and hexagonal α-phases, formed during thermal analysis experiments and specific isothermal treatments, have been analyzed for a series of Al-Mn-Si alloys with different iron contents. In these alloys, the Fe/Mn weight ratio was varied from 0.1 to 8.4. This study shows that in Al-Fe-Mn-Si alloys with Fe/Mn weight ratios up to 4, the a-phase has a cubic crystal structure, while in alloys with a Fe/Mn weight ratio of 5.3 or more, the a-phase has a hexagonal crystal structure. Hence, the critical Fe/Mn weight ratio for the cubic to hexagonal crystal structure transition falls between 4 and 5.3 for the studied alloys.

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Published

2011-12-30

How to Cite

Orozco-González, P., Castro-Román, M., López-Cuevas, J., Hernández-Rodríguez, A., Muñiz-Valdez, R., Luna-Álvarez, S., & Ortiz-Cuellar, C. (2011). Effect of iron addition on the crystal structure of the α-AlFeMnSi phase formed in the quaternary Al-Fe-Mn-Si system. Revista De Metalurgia, 47(6), 453–461. https://doi.org/10.3989/revmetalm.1068

Issue

Vol. 47 No. 6 (2011)

Section

Articles

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