Improvement of mechanical properties of cold-rolled commercially pure Ti sheet by high density electropulsing

作者: Hui SONG , Zhong-jin WANG

DOI: 10.1016/S1003-6326(11)61325-3

关键词: MicrostructureLamellar structureOptical microscopeDuctilityDeformation (engineering)Current densityPlasticityMetallurgyMaterials scienceUltimate tensile strength

摘要: Abstract Specimens cut from the cold-rolled commercially pure (CP) Ti sheet were treated by high density electropulsing (the maximum current 7.22 kA/mm 2 , pulse period 110 μs). The deformation behaviors of CP specimens at different states determined uniaxial tensile test. microstructure morphologies observed optical microscopy. results show that induced formation fine equal-axial grains and lamellar microstructures, which leads to strength electropulsed higher than conventional annealed Ti. After electropulsing, yield are increased 100 MPa. And has a good plasticity. experimental demonstrate provides an effective approach enhance retain required ductility.

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