Mathematical Model for the Kinetics of the Bainite Reaction in Steels

N. Chester and H. K. D. H. Bhadeshia


Steels with a mixed microstructure of allotriomorphic ferrite, bainitic ferrite, retained austenite and martensite have potentially good combinations of high strength and formability. This work describes a kinetic theory for the formation of bainite in steels where the precipitation of carbides is suppressed. The theory is based on the mechanism of transformation. It includes, for example, a nucleation model based on the Magee/Olson/Cohen theory for martensite, growth by a diffusionless mechanism in which sheaves of bainite form by the repeated nucleation of sub-units. These latter platelets grow to a size limited by plastic accommodation of the shape deformation. The theory is compared against experimental data.

Journal de Physique IV, Colloque C5, Vol. 7, 1997, pp. 41-46.

Download paper on the kinetics of the bainite transformation.

Bainitic Phase Transformations

Bainitic Welds Magnetic
Strong Bainite Cold Bainite
Hard Bainite Intragranular Bainite
Fast Bainite Upheavals
Nucleation Rate Theory
Temper Mössbauer
Review TRIP

Movies about Martensite and Bainite

Special issue on Bainite

Martensitic Phase Transformations

Transformation Hardening

Movies about Martensite and Bainite

Superalloys Titanium Bainite Martensite Stainless steels
Cast iron Welding Allotriomorphic ferrite Movies Slides
Neural Networks Creep Mechanicallly Alloyed Theses Retained Austenite

PT Group Home Materials Algorithms Any Valid CSS!