Extrusion processing of FeCo
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Ingots of three FeCo alloys, Fe-70 at % Co, e-50 at % Co and Fe-30% Co, were successfully extruded at 1000°C, then re-extruded at 750°C in order to produce fine-grained material. The resulting microstructures were examined both optically and by transmission electron microscopy. It was found that increasing the Fe: Co ratio produces less complete recrystallization: Fe-70 at % Co was completely recrystallized even after both the 1000 and 750°C extrusions, whilst Fe-30 at % Co was partially recrstallized after the 1000 °C extrusion. Single dislocations were present in the extruded alloys except single-extruded Fe-30 at % Co, in which dislocation pairs were observed.
KeywordsPolymer Microstructure Microscopy Electron Microscopy Transmission Electron Microscopy
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- 3.A. M. Glezer and I. V. Maleyeva, Phys. Met. Metall. 68 (1989) 65.Google Scholar
- 4.Lie Zhao, M.S. Thesis, Thayer School of Engineering, Dartmouth College (1992).Google Scholar
- 6.J. K. Stanley, Trans. ASM 42 (1950) 150.Google Scholar
- 8.I. Baker and P. Nagpal, in “Processing and Fabrication of Advanced Materials for High Temperatures Application-II”, edited by T. S. Srivatsen and V.A Ravi, (The Metallurgical Society, Warrendale, Pa., 1993 p. 3.Google Scholar
- 9.T. Massalski (ed), “Binary Alloy Phase Diagram” (American Society for Metals, Materials Park, Ohio, 1968).Google Scholar