Evolution of the microstructure and mechanical properties of an austenite–ferrite Fe–Mn–Al–C steel

Zhang, L.; Song, Ren‐Jie; Zhao, Chao; Yang, Fuqiang; Xu, Yang; Peng, Shiguang

doi:10.1016/j.msea.2015.07.043

Cited by 53 publications

(20 citation statements)

References 36 publications

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“…Yao et al also reported that the strain caused by the κ/γ mismatch results in the occupation of Al sites in κ-phase by Mn atoms and thus leads to off-stoichiometric concentration of Al [30]. Other recent studies on duplex austenite-ferrite lightweight steels directed towards the effect of annealing temperature on the microstructural evolution and mechanical properties [31,32], work hardening behaviour [33], and tensile deformation [34]. In 2014, the Minerals, Metals and Materials Society organized a special lightweight steel meeting where recent research progress of low density steel was discussed and various in-depth studies on the metallurgical behaviours, thermodynamic calculations and hot deformation mechanisms of lightweight steels were published [35,36,37].…”

Section: Introductionmentioning

confidence: 99%

Effect of Ni alloying on the microstructural evolution and mechanical properties of two duplex light-weight steels during different annealing temperatures: Experiment and phase-field simulation

2017

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Section: Introductionmentioning

confidence: 99%

Effect of Ni alloying on the microstructural evolution and mechanical properties of two duplex light-weight steels during different annealing temperatures: Experiment and phase-field simulation

2017

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“…During cooling, the transformation from austenite to ferrite in steel is very important because the morphology and volume fraction of ferrite in steels significantly impact its mechanical properties [3,4]. Thus, it is necessary to clearly understand the mechanism of transformation from austenite to ferrite during cooling, i.e., nucleation, thermodynamics, and kinetics.…”

Section: Introductionmentioning

confidence: 99%

The Kinetics of Phase Transition of Austenite to Ferrite in Medium-Carbon Microalloy Steel

Liu

Zhou

2021

Metals

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To reduce energy and resource consumption, high-strength hot-rolled rebars with yield strengths of ≥400 MPa (HRB500) and ≥500 MPa (HRB600) have been designed and produced in recent years. Optimizing the microstructure in the steel to improve strength necessitates determining the kinetics of the phase transition of austenite to polygonal ferrite. Therefore, in the study, the effect of temperature and holding time on the volume fraction of ferrite is investigated in HRB500 and HRB600 steels. Experimental results show that the ferrite percentage initially increases with an increase in temperature and then decreases as the temperature increases from 600 to 730 °C. The optimum temperature range is 680–700 °C for HRB500 steel and 650–680 °C for HRB600 steel. Based on the Johnson–Mehl–Avrami equation, phase transition kinetic models are established. Model predictions are consistent with the validation data. Thus, this study establishes a reference for studying ferrite formation during cooling.

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“…New steel grades are continuously developed to optimize the properties, such as low-density, good mechanical properties, corrosion resistance, and high-temperature oxidation resistance. In particular, since the 1980s, the metallurgical system featured by Fe-Al-Mn-C has been investigated, and a great potential for substituting the Fe-Ni-Cr-C class has been discovered [1,2,3,4,5,6]. Nevertheless, up to now, the specific tensile strength (the ratio between the strength and the density) is lower than the one pointed by the Aluminum alloys or Titanium alloys [7,8,9].…”

Section: Introductionmentioning

confidence: 99%

Corrosion and Oxidation Behavior of a Fe-Al-Mn-C Duplex Alloy

et al. 2019

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The low-density steels represent a topic of great interest within the scientific world because of the great demand from the steel market of increasingly lighter materials, also featured by an optimal mix of the mechanical properties. In this work, the corrosion and hot oxidation resistance of a Fe-15%Mn-9.5%Al-6.5%Ni-1%Cr-0.43%C were analyzed and related to the microstructural features. The material behavior was analyzed both in the as-cast and in the heat-treated state. For the corrosion test, the experimental plan was fulfilled using four different concentrations of HCl and four temperatures. In the case of hot oxidation resistance, the exposure time and the temperature effects were evaluated. The corrosion resistance in HCl was comparable to the stainless steel, and the iso-corrosion curves showed excellent resistance of the 1300 °C solution-treated material, especially at low temperatures, but it is also good at high temperatures due to the hot oxidation.

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Evolution of the microstructure and mechanical properties of an austenite–ferrite Fe–Mn–Al–C steel

Cited by 53 publications

References 36 publications

Effect of Ni alloying on the microstructural evolution and mechanical properties of two duplex light-weight steels during different annealing temperatures: Experiment and phase-field simulation

Effect of Ni alloying on the microstructural evolution and mechanical properties of two duplex light-weight steels during different annealing temperatures: Experiment and phase-field simulation

The Kinetics of Phase Transition of Austenite to Ferrite in Medium-Carbon Microalloy Steel

Corrosion and Oxidation Behavior of a Fe-Al-Mn-C Duplex Alloy

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