JMPS-preprint.pdf (3.1 MB)
Microscale deformation of a tempered martensite ferritic steel:Modelling and experimental study of grain and sub-grain interactions
journal contribution
posted on 2023-01-10, 15:07 authored by Brian J. Golden, Dong-Feng Li, Yina Guo, PETER TIERNANPETER TIERNAN, Sean B. Leen, Noel O'DowdNoel O'DowdIn this paper, a nite-element modelling framework is presented with explicit representation
of polycrystalline microstructure for a tempered martensite ferritic steel. A miniature notched
specimen was manufactured from P91 steel with a 20,000 hour service history and tested at
room temperature under three point bending. Deformation at the microscale is quanti ed by
electron back scattered di raction (EBSD) before and after mechanical loading. A represen-
tative volume element was developed, based on the initial EBSD scan, and a crystal plasticity
model used to account for slip-based inelastic deformation in the material. The model showed
excellent correlation with the experimental data when the relevant comparisons were made.
History
Publication
Journal of the Mechanics and Physics of Solids;86, pp. 42-52Publisher
ElsevierNote
peer-reviewedOther Funding information
SFIRights
This is the author’s version of a work that was accepted for publication in The Journal of Mechanics and Physics of Solids. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of the Mechanics and Physics of Solids, 2016, 86, pp. 42-52, http://dx.doi.org/10.1016/j.jmps.2015.09.015Language
EnglishAlso affiliated with
- Bernal Institute
External identifier
Department or School
- School of Engineering