Multiscale modeling of tempering of AISI H13 hot-work tool steel - Part 1: Prediction of microstructure evolution and coupling with mechanical properties

Eser A., Broeckmann C., Simsir C.

COMPUTATIONAL MATERIALS SCIENCE, vol.113, pp.280-291, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 113
  • Publication Date: 2016
  • Doi Number: 10.1016/j.commatsci.2015.11.020
  • Journal Name: COMPUTATIONAL MATERIALS SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.280-291
  • Keywords: Tempering Multiscale modeling, Precipitation simulation, Microstructure-property relationships, AISI H13, MULTICOMPONENT MULTIPHASE SYSTEMS, YIELD STRENGTH, PRECIPITATION, KINETICS, TEMPERATURE, VACANCIES, CARBIDES, BEHAVIOR, STRESS
  • Middle East Technical University Affiliated: No

Abstract

In the first part of this two part study, the mechanical properties necessary for the simulation of tempering of an AISI H13 (DIN 1.2344, X40CrMoV5-1) tool steel was derived using physically based precipitation simulations and microstructure-property relationships. For this purpose, the precipitation of fine carbides were simulated using a thermo-kinetic software which allows prediction of the evolution of precipitation/dissolution reactions and the particle sizes. Then, those microstructural findings were coupled with physically based microstructure-property models to predict the yield stress, flow curve and creep properties. The predicted mechanical properties were verified with corresponding experiments and a good agreement was found. In the second part of this study, those properties were coupled with a Finite Element (FE) model in order to predict the relaxation of internal stresses and the evolution of deformations at the macroscopic scale. (C) 2015 Elsevier B.V. All rights reserved.