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Purpose: The major problem restricting universal employment of intermetallic phase base alloy is their low plasticity which leads to hampering their development as construction materials. The following work concentrates on the analysis of microstructure and plasticity of ordered Fe3Al (D03) and FeAl (B2) during hot plastic deformation process. Design/methodology/approach: After casting and annealing, alloy specimens were subjected to axialsymmetric compression in the Gleeble 3800 simulator at temperatures ranging from 800, 900 and 1000°C at 0.1s-1strain rate. In order to analyse the processes which take place during deformation, the specimens after deformation were intensely cooled with water. Structural examination was carried out using light microscopy. The examination of the substructure was carried out by transmission electron microscopy (TEM). Findings: The microstructure analyses applying optic and electron microscopy have revealed the structure reconstruction processes occurring in Fe3Al and FeAl alloys. It has been shown that different mechanisms of the structural changes ensue from the thermal plastic strain in the investigated alloys, which influences their technological plasticity. Practical implications: The research carried out enabled the understanding of the phenomena taking place during deformation and annealing of the investigated alloy. The results will constitute the basis for modelling the structural changes. Originality/value: The results obtained are vital for designing an effective thermo - mechanical processing technology for the investigated Fe3Al and FeAl alloy.
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Rocznik
Tom
Strony
5--8
Opis fizyczny
Bibliogr. 15 poz.
Twórcy
autor
autor
autor
- Faculty of Materials Science and Metallurgy, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland, iwona.bednarczyk@polsl.pl
Bibliografia
- [1] N.S. Stoloff, Iron aluminides: present status and future, Materials Science and Engineering A 258 (1998) 1-14.
- [2] D. Kuc, G. Niewielski, M. Jabłońska, I. Bednarczyk, Deformability recrystallization of Fe-Al intermetallic phase – base alloy, Journal of Achievements in Materials and Manufacturing Engineering 20 (2007) 143-146.
- [3] D. Kuc, G. Niewieski, I. Bednarczyk, The influence of deformation on the plasticity and structure of Fe3Al-5Cr alloy, Journal of Achievements in Materials and Manufacturing Engineering 22/1 (2007) 27-30.
- [4] B.S.J. Kang, R. Cisloiu, Evaluation of fracture behaviour of iron aluminides Theoretical and Applied Fracture, Mechanics 45 (2006) 25-40.
- [5] J. Cebulski, S. Lalik, Changes in the structure of alloy on the matrix of FeAl intermetallic phase after primary crystallization and homogenizing treatment, Proceedings of the 13th Scientific International Conference „Achievements in Mechanical and Materials Engineering” AMME’2005,Gliwice–Wisła, 2005, 59-62.
- [6] M. Jabłońska, K. Rodak, G. Niewielski, Characterization of the structure of FeAl alloy after hot deformation Journal of Achievements in Materials and Manufacturing Engineering 18 (2006) 107-110.
- [7] P. Chakraborty, I.G. Sharma, A.K. Suri, D.K. Bose, Studies on preparation, characterisation and evaluation of properties of Fe3Al-based intermetallic alloy of composition Fe–16Al–5.44Cr–1Nb–0.5C, Journal of Materials Processing Technology 115 (2001) 413-422.
- [8] D.H. Sastry, Y.V.R.K. Prasad, S.C.Deevi, Influence of temperature and strain rate on the flow stress of an FeAl alloy, Materials Science and Engineering 5 (2001) 157-163.
- [9] D. Huang, W. Y. Yang, Z. Q. Sun, L. Froyen, Preparation and mechanical properties of large-ingot Fe3Al-based alloys, Journal of Materials Processing Technology 146 (2004) 175-180.
- [10] D.G. Morris, M.A. Mu?oz-Morris, J. Chao, Development of high strength, high ductility and high creep resistant ironaluminide, Intermetallics 12 (2004) 82-826.
- [11] P.I. Ferreira, A.A. Couto, J.C.C. de Paola, The effects of chromium addition and heat treatment on the microstructure and tensile properties of Fe-24Al(at. %), Materials Science and Engineering A192/193 (1995) 165-169.
- [12] Y.D. Huang, W.Y. Yang, Z.Q. Sun, Effect of the alloying element chromium on the room temperature ductility of Fe3Al intermetallics , Intermetallics 9 (2001) 119-124.
- [13] P. Chakraborty, I.G. Sharma, A.K. Suri, D.K. Bose, Studies on preparation, characterisation and evaluation of properties of Fe3Al-based intermetallic alloy of composition Fe–16Al–5.44Cr–1Nb–0.5C Journal of Materials Processing Technology 115 (2001) 413-422.
- [14] D.H. Sastry, Y.V.R.K. Prasad, S.C. Devi, Influence of temperature and strain rate on the flow stress of an FeAlalloy, Materials Science and Engineering A299 (2001) 157-163.
- [15] M. Jabłońska, E. Bernstock, A Jasik, Microstructure and mechanical properties of intermetallics on the base of Fe-Al alloy obtained by casting, Archives of Materials Science and Engineering 28/10 (2007) 625-628.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BSL9-0030-0001