Martensite Spread: Analytical Modeling and Computer Simulation

Paulo Rangel Rios; Gustavo da Silva Drumond; Tiago Neves; José Roberto Costa Guimarães

doi:10.4028/www.scientific.net/MSF.783-786.2182

Paper Titles

Thermo-Mechanically Coupled Modeling of Cooling Temperature History Effects on Precipitation Hardening in Hot Strip Coiled Products
p.2160

Towards a 3-Dimensional Phase-Field Model of Non-Isothermal Alloy Solidification
p.2166

Density Functional Theory Study of H₂O Molecules on Cr₂O₃ Surfaces
p.2172

Microstructure Computation for Phase Transition in Steels
p.2176

Martensite Spread: Analytical Modeling and Computer Simulation
p.2182

Discovery of New Materials and Heat Treatments: Accelerated Metallurgy and the Case of Ferrous and Magnesium Alloys
p.2188

Simulation of Inhomogeneous Materials Evolution in Hot Rolling Using a Layer Model
p.2194

Modeling of Hydrogen Diffusion in Piled Slabs
p.2201

Use of Electronic Stress Tensor Density and Energy Density in Chemistry
p.2207

HomeMaterials Science ForumMaterials Science Forum Vols. 783-786Martensite Spread: Analytical Modeling and...

Martensite Spread: Analytical Modeling and Computer Simulation

Abstract:

In bulk polycrystals, the ﬁrst nucleation event in a single grain may induce transformationin neighboring grains, resulting in a cluster of partially transformed grains. This cluster of partiallytransformed grains is normally designated as a ‘spread event’. The collection of these single spreadevents can be deﬁned as the ‘spread’or ‘martensite spread’. In this paper we show how the martensitespreadmay be well described by formal kinetics. Spread taking place as a result of athermalmartensitetransformation, isothermal martensite transformation and even martensite burst are analyzed with thehelp of such a methodology. Formal kinetics is essentially based on a stochastic geometry approach ofthe transformations considered as nucleation and growth (or birth-and-growth ) processes. Therefore,the success of such an analysis strongly suggests the possibility of a computer simulation of the spreadentirely based on probabilistic considerations. Such a simulation has been carried out and the resultsare discussed in this paper with reference to the results obtained by the analytical methods.