Recrystallization and Grain Growth Phenomena in Stainless Steels for Different Thermo-Mechanical Processes

Giuseppe Napoli; Stefano Grimozzi; Claudia Rocchi; Andrea Di Schino

doi:10.4028/www.scientific.net/MSF.941.135

Paper Titles

Surface Defect Formation in Steel Continuous Casting
p.112

Microstructure, Texture, Mechanical and Corrosion Performance of the Stainless Duplex Steel UNS S32205 Submitted to Warm Rolling
p.118

Prediction of the Hydrogen-Induced Damage to Ultra-High Strength Steel Concepts
p.124

Nucleation Effect of Ca-Oxysulfide Inclusions of Low Carbon Steel in Heat Affected Zone by Welding
p.130

Recrystallization and Grain Growth Phenomena in Stainless Steels for Different Thermo-Mechanical Processes
p.135

Evaluation of Nanosize NbC Precipitates in HSLA Steel through Microstructural Analysis and Small Angle Neutron Scattering
p.141

TMP as an Effective Technique to Produce Ultra-Fine Grained Steels
p.147

Critical Conditions of Cold Cracking in High Strength Steel Weld Based on the Local Stress Distribution and Hydrogen Accumulation
p.153

Effect of Gap between Steel Sheet and Electrode on Resistance Spot Welding
p.158

HomeMaterials Science ForumMaterials Science Forum Vol. 941Recrystallization and Grain Growth Phenomena in...

Recrystallization and Grain Growth Phenomena in Stainless Steels for Different Thermo-Mechanical Processes

Abstract:

The mechanical properties of steels are strictly connected to chemical composition as well as to microstructural features obtained after thermo-mechanical processing. As a consequence, recrystallization and grain growth are relevant to the mechanical properties of steels, thus suggesting the necessity of mathematical models able to predict the microstructural evolution after thermo-mechanical cycles. In particular, in stainless steel grades, mechanical characteristics, and a proper microstructure with an adequate grain size distribution, are very important in order to achieve the required formability and deep drawing properties for many applications. This paper deals with the study of microstructural changes, such as grain size variations and recrystallized volume fraction in stainless steels during isothermal treatments through the application of a mathematical model, able in general to describe the primary recrystallization and grain growth in metals. The developed model takes into account the recrystallization phenomenon and Zener drag effect. A general continuity equation is proposed describing in continuous way recrystallization and grain growth phenomena without taking into account textures effect. The influence of input parameters is analyzed.