Microstructure and mechanical properties of Al-3Fe alloy processed by equal channel angular extrusion

Abstract : Al-Fe alloys are attractive for applications at temperatures beyond those normally associated with the conventional aluminum alloys. Under proper solidification condition, a full eutectic microstructure can be generated in Al-Fe alloys at Fe concentration well in excess of the eutectic composition of 1.8 wt.% Fe. The microstructure in this case is characterized by the metastable regular eutectic Al-Al6Fe fibers of nano-scale in diameter, instead of the equilibrium eutectic Al-Al3Fe phase. In this study, the microstructure and mechanical properties of the Al-3Fe alloy with metastable Al6Fe particles deformed by equal channel angular extrusion were investigated. Severe plastic deformation results in a microstructure consisting of submicron equiaxed Al grains with a uniform distribution of submicron Al6Fe particles on the grain boundaries. The room temperature tensile properties of the alloy with this microstructure will be presented.
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Communication dans un congrès
6th International Conference on Nanomaterials by Severe Plastic Deformation, Jun 2014, Metz, France. IOP Conference Series: Materials Science and Engineering, 63 (conference 1), 〈10.1088/1757-899X/63/1/012079〉
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Yu Fuxiao, Liu Fang, Zhao Dazhi, Laszlo S. Toth. Microstructure and mechanical properties of Al-3Fe alloy processed by equal channel angular extrusion. 6th International Conference on Nanomaterials by Severe Plastic Deformation, Jun 2014, Metz, France. IOP Conference Series: Materials Science and Engineering, 63 (conference 1), 〈10.1088/1757-899X/63/1/012079〉. 〈hal-01518031〉

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