Effect of a new pretreatment-Q&amp;P process on the microstructure and mechanical properties of light-weight Al-containing medium-Mn steels

Wu, Zhonglin; Jing, Cainian; Feng, Yan; Li, Zhaotong; Lin, Tao; Zhao, Jingrui; Liu, Lei

doi:10.1016/j.msea.2022.144468

Cited by 5 publications

(1 citation statement)

References 21 publications

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“…The diffraction peaks of the BCC phase are (2 0 0) and (2 1 1) and the diffraction peaks of the FCC phase are (2 0 0), (2 2 0) and (3 1 1), respectively. The retained austenite volume fraction is calculated using Equation (1) by precisely determining the corresponding diffraction angle 2θ and the integral intensity I : 12 where V γ is the retained austenite volume fraction. I γ is the comprehensive intensity of austenite crystal diffraction peaks (2 0 0), (2 2 0) and (3 1 1).…”

Section: Experimental Materials and Methodsmentioning

confidence: 99%

Effect of annealing time on microstructure and mechanical properties of Fe–C–Mn–Al–Si steel

Xu,

Zheng,

Jing

et al. 2024

Materials Science and Technology

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Cold-rolled medium manganese steel (0.09C–7.23Mn–1.99Si–4.42Al wt-%) was investigated. The tested steel was treated by inter-critical annealing quenching and partitioning process. The effects of the annealing time on the microstructure and mechanical properties of the medium manganese steel were investigated by SEM, TEM, EBSD and XRD methods. The results show that, the tested steel consists of martensite, α-ferrite, δ-ferrite and retained austenite. The process has a significant effect on the diffusion of C/Mn elements and significantly changes the microstructure of the tested steel. At the same time, the austenite grain size and the degree of dispersion of its internal elements reach a balance, which is conducive to maintaining moderate stability of the massives retained austenite at room temperature.

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Section: Experimental Materials and Methodsmentioning

confidence: 99%