Effect of Grain Refinement on the Mechanical Behaviour of Ferritic Steels: Evolution of Isotropic Hardening and Kinematic Hardening

Olivier Bouaziz; A. Aouafi; Sebastien Allain

doi:10.4028/www.scientific.net/MSF.584-586.605

Paper Titles

Microstructure and Mechanical Properties of Commercial Purity HIPed and Crushed Aluminum
p.579

Texture and Grain Boundary Character Distribution during Equal Channel Angular Extrusion of some Two-Phase Copper Alloys
p.585

Microstructure Development and Precipitation Effects in Ultra Fine Grained Mg-3Tb-2Nd Alloy Prepared by High Pressure Torsion
p.591

Tensile Property of Submicrocrystalline Pure Fe Produced by HPT-Straining
p.597

Effect of Grain Refinement on the Mechanical Behaviour of Ferritic Steels: Evolution of Isotropic Hardening and Kinematic Hardening
p.605

Evolution of Texture in Ultra-Fine Grained Ferrite through Warm-Rolling and Intercritical Annealing
p.610

Study of the Plastic Deformation in Nanocrystalline and Ultrafine Iron and Carbon Steels
p.617

Ultrafine Grained Low Carbon Steels Processed by Severe Plastic Deformation
p.623

Microstructure Evolution during Continuous Frictional Angular Extrusion of Interstitial-Free Steel
p.631

HomeMaterials Science ForumMaterials Science Forum Vols. 584-586Effect of Grain Refinement on the Mechanical...

Effect of Grain Refinement on the Mechanical Behaviour of Ferritic Steels: Evolution of Isotropic Hardening and Kinematic Hardening

Abstract:

New experimental data related to the grain size and the Bauschinger effects have been obtained for ferritic steels with grain size in the range of 3.5-22m. As the data show an increasing contribution of the kinematic hardening with grain size refinement, a new physical based model describing the isotropic hardening and the kinematic hardening is presented and validated with regard to the grain size. The consequences are discussed for fine grain metallic alloys.