Abstract
The experimentally measured grain-orientation-dependent residual lattice strains, evolved in an interstitial-free steel after 70% cold rolling reduction, are studied by means of crystal elastic visco-plastic finite element simulations, which provides a very satisfactory prediction of deformation texture. The calculated residual lattice strain pole figure matches well with the experimentally measured counterpart within the highest density regions of major texture components observed. Both experimental evidence and results of modeling clearly indicate that the residual lattice strain is orientation dependent, based on comprehensive information on the evolution of residual lattice strain in various crystallographic orientations during plastic deformation. It appears that in a cold rolled material, there is a general correlation between the stresses developed just prior to unloading and the residual lattice strains in particular directions. It is also shown that the cumulative plastic shear does not reveal a clear correlation with the components of residual lattice strain while presented in the normal correlation plot, however, this relationship can be better understood by means of the orientation distribution function of residual lattice strain, which can be derived from the neutron or X-ray diffraction experiments.
| Original language | English |
|---|---|
| Article number | 1700408 |
| Journal | Steel Research International |
| Volume | 89 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2018 |
Funding
The work related to current CEPFEM work is sponsored by the Laboratory Directed Research and Development (LDRD) Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U. S. Department of Energy. YDW thanks the financial support from National Science Foundation of China (NSFC) (Grant No. s 51471032 and 51231002), the Fundamental Research Funds for the Central Universities (Grant No. 06111020), and the fundamental research fund at the State Key Laboratory for Advanced Metals and Materials (2014Z-01). QX also thanks the National Science Foundation of China (NSFC) (Grant No. 51571025) during his former post-doctoral appointment period. JJS acknowledges the support of EFOP-3.6.1-16 project: “Innovative processing technologies, applications of energy engineering and implementation of wide range techniques for microstructure investigation”. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). The work related to current CEPFEM work is sponsored by the Laboratory Directed Research and Development (LDRD) Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U. S. Department of Energy. YDW thanks the financial support from National Science Foundation of China (NSFC) (Grant No. s 51471032 and 51231002), the Fundamental Research Funds for the Central Universities (Grant No. 06111020), and the fundamental research fund at the State Key Laboratory for Advanced Metals and Materials (2014Z-01). QX also thanks the National Science Foundation of China (NSFC) (Grant No. 51571025) during his former post-doctoral appointment period. JJS acknowledges the support of EFOP-3.6.1-16 project: “Innovative processing technologies, applications of energy engineering and implementation of wide range techniques for microstructure investigation”. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/ downloads/doe-public-access-plan).
Keywords
- Grain orientation
- IF steel
- Lattice strain
- Residual lattice strain
- Rolling