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Article

Hot-Deformation Behavior and Processing Maps of a Low-Carbon Fe-2 wt% Nb Steel

1
International Joint Laboratory for Light Alloys (MOE), College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
2
National Engineering Research Center for Equipment and Technology of Cold Rolled Strip, Yanshan University, Qinhuangdao 066004, China
3
Electron Microscopy Center of Chongqing University, Chongqing University, Chongqing 400044, China
4
Shenyang National Laboratory for Materials Science, Chongqing University, Chongqing 400044, China
5
Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
*
Authors to whom correspondence should be addressed.
Academic Editors: Rebecca L. Higginson and Stefano Spigarelli
Metals 2021, 11(12), 1939; https://doi.org/10.3390/met11121939
Received: 14 October 2021 / Revised: 18 November 2021 / Accepted: 24 November 2021 / Published: 30 November 2021
(This article belongs to the Special Issue Crystal Plastic Deformation Mechanism of Metallic Materials)
In the present work, the deformation behavior and processing maps of a low-carbon Fe-2 wt% Nb steel were studied by means of hot-compression tests at temperatures of 800–1150 °C and strain rates of 0.01–10 s−1. The hot-processing maps at different strains and corresponding microstructural evolution were constructed and discussed. The hot-deformation behaviors of two different phase regions, i.e., austenite + NbC dual-phase and ferrite + NbC dual-phase, were predicted by determining the constitutive equations using Arrhenius-type and Zener–Hollomon models. The results suggest that the hot-deformed microstructures of the material present a strong correlation with the processing parameters in the hot-processing maps. In addition, the optimum parameters based on the processing maps were obtained, and the instable and the safe domains during the hot deformation in the hot-processing maps provide solid theoretical guidance for industrial production. View Full-Text
Keywords: heat-resistant steel; Nb-bearing steel; hot-deformation behavior; hot-processing maps heat-resistant steel; Nb-bearing steel; hot-deformation behavior; hot-processing maps
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MDPI and ACS Style

Luo, W.; Cai, P.; Hou, Z.; Wang, Y.; Zhang, L.; Wu, G. Hot-Deformation Behavior and Processing Maps of a Low-Carbon Fe-2 wt% Nb Steel. Metals 2021, 11, 1939. https://doi.org/10.3390/met11121939

AMA Style

Luo W, Cai P, Hou Z, Wang Y, Zhang L, Wu G. Hot-Deformation Behavior and Processing Maps of a Low-Carbon Fe-2 wt% Nb Steel. Metals. 2021; 11(12):1939. https://doi.org/10.3390/met11121939

Chicago/Turabian Style

Luo, Wentao, Pengzhan Cai, Ziyong Hou, Yuhui Wang, Ling Zhang, and Guilin Wu. 2021. "Hot-Deformation Behavior and Processing Maps of a Low-Carbon Fe-2 wt% Nb Steel" Metals 11, no. 12: 1939. https://doi.org/10.3390/met11121939

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