Applied Physics Letters · 2007 · 69 citations · 12 references
Natural SciencesMaterials EngineeringMaterials ScienceMechanical Behavior Of MaterialsMetallic MaterialsMetallurgyAlloysMetalsMicrostructure AnalysisMicrostructure EvolutionMultiscale Solid MechanicsShear ZonesEutectic ColoniesEutectic MicrostructureFracture Surface MorphologyFracture Surface TopographyLamellar MorphologyLamellar StructureShear BandsShear Stress
Microstructural investigations of an ultrafine eutectic Fe83Ti7Zr6B4 alloy reveal that spherical eutectic colonies are composed of nanoeutectic areas which are encapsulated by submicron eutectic areas indicating length-scale heterogeneity of lamellar structure. Furthermore, formation of the wavy and discontinuous shear bands indicative of dissipation of the shear stress are possibly caused by a rotation of the eutectic colonies along the submicron eutectic areas during deformation, leading to developing typical dimples on the fracture surface. The rotation of the eutectic colonies containing the length-scale heterogeneity is proposed to be responsible for macroscopic plasticity of the ultrafine eutectic Fe83Ti7Zr6B4 alloy.
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Novel Ti-base nanostructure–dendrite composite with enhanced plasticity
Guo He, J. Eckert, Wolfgang Löser et al. · Nature Materials · 2002 · 722 citations
Natural Sciences, Materials Engineering, Materials Science +12
High-strength Ti-base ultrafine eutectic with enhanced ductility
J. Das, K. B. Kim, F. Baier et al. · Applied Physics Letters · 2005 · 154 citations
Natural Sciences, Materials Engineering, Materials Science +15