JMP  Vol.5 No.8 , May 2014
Structural and Morphological Study of a Series of Ball Milled Nanocrystalline Fe1-xAlx (0.3 ≤ x ≤ 0.6) Alloys
ABSTRACT

In the present manuscript, the authors have systematically investigated the structural and morphological properties of a series of mechanically alloyed Fe1-xAlx (0.3 ≤ x ≤ 0.6) samples using X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). All the samples, after 5 hr of milling, show crystalline structure, irrespective of the constituent concentration and are textured mainly along (110) direction. In Fe-rich samples, the formation of an off-stoichiometric Fe3Al phase is favored and in case of Al-rich samples, both Al-rich phases and clustering of Al atoms are present. Analysis of line breadths was carried out to get an insight into the interrelated effects of average crystallite size, and lattice parameters. The grain size of constituents was decreased to the nanometer range (between 6 - 8 nm) and the constituents dissolved at the nanograin boundaries. Similar conclusions were also revealed from the SEM results which show that the initial shape of particles disappeared completely, and their structure became a mixture of small and large angularshaped crystallites with different sizes. The results of this research could be directly employed in the design of deformation schedules for the industrial processing of Fe-Al alloys.


Cite this paper
Rajan, S. , Shukla, R. , Kumar, A. , Vyas, A. and Brajpuriya, R. (2014) Structural and Morphological Study of a Series of Ball Milled Nanocrystalline Fe1-xAlx (0.3 ≤ x ≤ 0.6) Alloys. Journal of Modern Physics, 5, 643-648. doi: 10.4236/jmp.2014.58075.
References
[1]   Hernando, A. and Gonzalez, J.M. (2000) Hyperfine Interactions, 130, 221-240.
http://dx.doi.org/10.1023/A:1011096522429

[2]   Deevi, S.C. and Sikka, V.K. (1996) Intermetallics, 4, 357-375.
http://dx.doi.org/10.1016/0966-9795(95)00056-9

[3]   Kouvel, J.S., Westbrook, J.H. and Fleischer, R.L. (1994) Intermetallic Compounds: Principles. Wiley, New York.

[4]   George, E.P., Yamaguchi, M., Kumar, K.S. and Liu, C.T. (1994) Annual Review of Materials Science, 24, 409-451.
http://dx.doi.org/10.1146/annurev.ms.24.080194.002205

[5]   Deevi, S.C. (2000) Intermetallics, 8, 679-685.
http://dx.doi.org/10.1016/S0966-9795(99)00129-6

[6]   Pocci, D., Tassa, O. and Testani, C. (1994) Processing Properties and Applications of Iron Aluminides. In: Schneibel, J.H. and Crimp, M.A., Eds., The Materials, Metals and Minerals Society, Warrendale, 19-30.

[7]   Srinivasan, M.N. and Sikka, V.K. (1994) Tensile Properties of a Mechanically Alloyed Fe3Al-Based Alloy. In: Schnebel, J.H. and Crimp, M.A., Eds., Processing, Properties and Applications of Iron Aluminides, The Minerals, Metals and Materials Society, Warrendale, 69-78.

[8]   Gleiter, H. (1991) Progress in Materials Science, 33, 223-315.
http://dx.doi.org/10.1016/0079-6425(89)90001-7

[9]   Koch, C.C. (1992) Materials Science Forum, 243, 88-90.

[10]   Bohn, R., Haubold, T., Birringer, R. and Gleiter, H. (1991) Scripta Metallurgica et Materialia, 25, 811-816.
http://dx.doi.org/10.1016/0956-716X(91)90230-X

[11]   Suryanarayana, C. (2001) Progress in Materials Science, 46, 1-184.
http://dx.doi.org/10.1016/S0079-6425(99)00010-9

[12]   Hernando, A., Amils, X., Nogues, J., Surinach, S., Baro, M.D. and Ibarra, M.R. (1998) Physical Review B, 58, Article ID: R11864.

[13]   Kattner, U.R. (1990) Binary Alloy Phase Diagrams. In: Massalski, T.B., Ed., ASM International, Metals Park, 147.

[14]   Hultgren, R., et al. (1973) Selected Values of the Thermodynamic Properties of Binary Alloys. American Society for Metals, Metals Park, 156.

 
 
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