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Texture, Mechanical Properties, and Formability of a Lightweight Steel during Cold Rolling and Annealing.

Authors :
Lin, Fang-min
Wu, Xue-jun
Zhang, Xiao-feng
Xing, Mei
Yang, Yong
Wang, Yong-jian
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]

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