Determining the No-Recrystallization Conditions for Industrial Hot Strip Rolling of Steels Using Laboratory Simulations

Gwenola Herman; Evgueni I. Poliak

doi:10.4028/www.scientific.net/MSF.706-709.1409

Paper Titles

Numerical Modeling of Nonmetallic Inclusions Flowing Out during Solidification of Continuous Cast Steel Billets in Mould Zone
p.1385

Hydrogen Charging of High Strength Steel Specimens and Physical Simulation of Cold Cracking under Laser Beam Welding Conditions
p.1391

The Influence of the Initial State on the Softening and Precipitation Kinetics in Hot Metal Forming
p.1397

Predicting Solid-State Phase Transformations during Welding of Ferritic Steels
p.1403

Determining the No-Recrystallization Conditions for Industrial Hot Strip Rolling of Steels Using Laboratory Simulations
p.1409

Effect of Water Temperature on Wetting Front Kinematics during Forced Convective Quenching
p.1415

Modelling of Strip Shape and Profile during Cold Rolling of Ultra Thin Strip
p.1421

Numerical Simulation of Solidification of Thick-Wall Stainless Steel Pipe in Horizontal Centrifugal Casting Process
p.1427

Result Mining in Numerical Simulation of Casting and Heat Treatment Processes
p.1433

HomeMaterials Science ForumMaterials Science Forum Vols. 706-709Determining the No-Recrystallization Conditions...

Determining the No-Recrystallization Conditions for Industrial Hot Strip Rolling of Steels Using Laboratory Simulations

Abstract:

Avoiding recrystallization of austenite in hot strip rolling of steels is highly important for enhancing mechanical properties of hot rolled products, as well as for the products undergoing cold rolling and annealing or coating. Recrystallization can only be avoided if its incubation time is longer that the time intervals characteristic for a particular hot rolling process. The present work focuses on computation of incubation time t_inc for static recrystallization using laboratory hot deformation data and on extrapolation the results to industrial conditions. The computations are done based on application of critical conditions for initiation of dynamic recrystallization to the static case. No-recrystallization temperature in hot strip rolling is determined by setting t_inc equal to interpass time. Simulations allow for prediction of the onset of austenite static or metadynamic recrystallization after individual rolling passes during industrial hot rolling and evaluation of the effects of strip thickness, rolling speeds, etc.