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Texture, Mechanical Properties, and Formability of a Lightweight Steel during Cold Rolling and Annealing.
- Source :
- Journal of Materials Engineering & Performance; Oct2024, Vol. 33 Issue 19, p10505-10517, 13p
- Publication Year :
- 2024
-
Abstract
- In this work, the texture evolution, mechanical properties, and formability of cold-rolled lightweight steel annealed at 500, 600, 700, and 800 °C for 30 min were investigated. The phases in the annealed specimens mainly included ferrite, austenite, and martensite. The retained austenite showed a trend of increasing and then decreasing with the increase in annealing temperature. At the annealing temperature of 700 °C, the retained austenite content reached the maximum value of 53.0%, resulting in a large amount of martensitic TRIP effect during the subsequent deformation. So the steel obtained the optimal mechanical properties with the ultimate tensile strength of 1613 MPa, ultimate elongation of 30.2%, and largest product of strength and ductility of 48.7GPa%. In addition, the annealing temperature of 700 °C was conducive to the stamping texture of {111} < 110> orientation, as well as higher strength, and the plastic strain ratio (r), the strain hardening index (n), and the flexural strength ratio (R<subscript>eL</subscript>/R<subscript>m</subscript>) were 1.25, 0.55, and 0.41, respectively, the material obtained excellent formability. [ABSTRACT FROM AUTHOR]
- Subjects :
- LIGHTWEIGHT steel
COLD rolling
TENSILE strength
STRAIN hardening
FLEXURAL strength
Subjects
Details
- Language :
- English
- ISSN :
- 10599495
- Volume :
- 33
- Issue :
- 19
- Database :
- Complementary Index
- Journal :
- Journal of Materials Engineering & Performance
- Publication Type :
- Academic Journal
- Accession number :
- 180374203
- Full Text :
- https://doi.org/10.1007/s11665-023-08665-z