Skip to Main content Skip to Navigation
Journal articles

Microstructure-based behavior law for globular pearlitic steels

Abstract : Pearlitic steels are widely used in the industry for their good balance between strength, ductility and machinability. Sometimes, the classical lamellar structure can degenerate in a so-called globular structure which may significantly affect the behavior of the steel. To our knowledge, no size sensitive model is available in the literature to predict their mechanical behaviors and work-hardenings. Inspired by their analogy with ferrite–martensite dual-phase microstructures, we propose a new microstructure-based law for globular pearlite. It describes the evolution of the dislocation density into ferritic grains which is enhanced by the presence of hard particles. The model is as a consequence sensitive to ferritic grain but also to coarse carbide sizes after globularization. The model has been calibrated on a conventional steel grade and appears to be a practical tool for microstructure design.
Document type :
Journal articles
Complete list of metadata

https://hal.univ-lorraine.fr/hal-02140269
Contributor : Accord Elsevier CCSD Connect in order to contact the contributor
Submitted on : Monday, October 25, 2021 - 11:02:48 AM
Last modification on : Tuesday, September 27, 2022 - 4:31:49 AM
Long-term archiving on: : Wednesday, January 26, 2022 - 7:11:30 PM

File

S2238785418308822.pdf
Files produced by the author(s)

Licence


Distributed under a Creative Commons Attribution - NonCommercial 4.0 International License

Identifiers

Citation

Sébastien Y.P. Allain, Amandine Roth, Olivier Bouaziz, Enrico D’eramo. Microstructure-based behavior law for globular pearlitic steels. Journal of Materials Research and Technology, Elsevier, 2019, 8 (3), pp.3373-3376. ⟨10.1016/j.jmrt.2019.03.014⟩. ⟨hal-02140269⟩

Share

Metrics

Record views

57

Files downloads

30