Effects of Cryogenic Rolling on the Microstructure Evolution and Mechanical Properties of Low-Density Fe-28Mn-8Al-1C Steel
Xiong, Yi; Luan, Ze-wei; Zha, Xiao-qin; Li, Yong; Du, Xiu-ju; Ren, Feng-zhang; Wang, Shu-bo; Liu, Xiao-jun (2024-08-08)
John Wiley & Sons
08.08.2024
Xiong, Y., Luan, Z.-w., Zha, X.-q., Li, Y., Du, X.-j., Ren, F.-z., Wang, S.-b. and Liu, X.-j. (2024), Effects of Cryogenic Rolling on the Microstructure Evolution and Mechanical Properties of Low-Density Fe-28Mn-8Al-1C Steel. Steel Research Int., 95: 2400447. https://doi.org/10.1002/srin.202400447
https://rightsstatements.org/vocab/InC/1.0/
© 2024 Wiley-VCH GmbH. This is the peer reviewed version of the following article: Xiong, Y., Luan, Z.-w., Zha, X.-q., Li, Y., Du, X.-j., Ren, F.-z., Wang, S.-b. and Liu, X.-j. (2024), Effects of Cryogenic Rolling on the Microstructure Evolution and Mechanical Properties of Low-Density Fe-28Mn-8Al-1C Steel. Steel Research Int., 95: 2400447, which has been published in final form at https://doi.org/10.1002/srin.202400447. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
https://rightsstatements.org/vocab/InC/1.0/
© 2024 Wiley-VCH GmbH. This is the peer reviewed version of the following article: Xiong, Y., Luan, Z.-w., Zha, X.-q., Li, Y., Du, X.-j., Ren, F.-z., Wang, S.-b. and Liu, X.-j. (2024), Effects of Cryogenic Rolling on the Microstructure Evolution and Mechanical Properties of Low-Density Fe-28Mn-8Al-1C Steel. Steel Research Int., 95: 2400447, which has been published in final form at https://doi.org/10.1002/srin.202400447. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
https://rightsstatements.org/vocab/InC/1.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202410256467
https://urn.fi/URN:NBN:fi:oulu-202410256467
Tiivistelmä
Abstract
This study undertakes a systematic investigation into the influence of cryogenic rolling (CR) deformation on the microstructure evolution and mechanical properties of low-density Fe-28Mn-8Al-1C steel. The results reveal that the microstructure undergoes a series of transformations, from equiaxed austenite grains to elongated grains with strain bands, twinning, dislocation entanglements, and dislocation cells. The texture evolves from brass to copper with increasing deformation. Besides, the mechanical properties exhibit a direct correlation with the extent of deformation, as evidenced by the notable increase in ultimate tensile strength, yield strength, and microhardness from 882 to 1861, 505 to 1791 MPa, and 284 to 578 HV, respectively. However, elongation decreases from 64% to 6.6%, indicative of the strength-ductility trade-off. The aforementioned findings provide insight into the potential for manipulating the microstructure evolution and mechanical properties of low-density steels utilizing CR.
This study undertakes a systematic investigation into the influence of cryogenic rolling (CR) deformation on the microstructure evolution and mechanical properties of low-density Fe-28Mn-8Al-1C steel. The results reveal that the microstructure undergoes a series of transformations, from equiaxed austenite grains to elongated grains with strain bands, twinning, dislocation entanglements, and dislocation cells. The texture evolves from brass to copper with increasing deformation. Besides, the mechanical properties exhibit a direct correlation with the extent of deformation, as evidenced by the notable increase in ultimate tensile strength, yield strength, and microhardness from 882 to 1861, 505 to 1791 MPa, and 284 to 578 HV, respectively. However, elongation decreases from 64% to 6.6%, indicative of the strength-ductility trade-off. The aforementioned findings provide insight into the potential for manipulating the microstructure evolution and mechanical properties of low-density steels utilizing CR.
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