title: Analysis of transformation plasticity in steel using a finite element method coupled with a phase field model.
abstract: An implicit finite element model was developed to analyze the deformation behavior of low carbon steel during phase transformation. The finite element model was coupled hierarchically with a phase field model that could simulate the kinetics and micro-structural evolution during the austenite-to-ferrite transformation of low carbon steel. Thermo-elastic-plastic constitutive equations for each phase were adopted to confirm the transformation plasticity due to the weaker phase yielding that was proposed by Greenwood and Johnson. From the simulations under various possible plastic properties of each phase, a more quantitative understanding of the origin of transformation plasticity was attempted by a comparison with the experimental observation.
authors.affiliation: Department of Materials Science and Engineering and Center for Iron & Steel Research, RIAM, Seoul National University, Seoul, Republic of Korea.
authors.forename: Yi-Gil
authors.initials: YG
authors.lastname: Cho
authors.forename: Jin-You
authors.initials: JY
authors.lastname: Kim
authors.forename: Hoon-Hwe
authors.initials: HH
authors.lastname: Cho
authors.forename: Pil-Ryung
authors.initials: PR
authors.lastname: Cha
authors.forename: Dong-Woo
authors.initials: DW
authors.lastname: Suh
authors.forename: Jae Kon
authors.initials: JK
authors.lastname: Lee
authors.forename: Heung Nam
authors.initials: HN
authors.lastname: Han
mesh_terms: D003198:Computer Simulation; D003722:Dental Alloys / Q000737:chemistry; D055119:Elastic Modulus; D005290:Ferric Compounds / Q000737:chemistry; D020342:Finite Element Analysis; D008956:Models, Chemical; D044367:Phase Transition; D013232:Steel / Q000737:chemistry*; D013314:Stress, Mechanical; D013696:Temperature
chemical_list: D003722:Dental Alloys; D005290:Ferric Compounds; C093826:Austenite; D013232:Steel; C001215:ferrite