Hot deformation of a Fe-Mn-Al-C steel susceptible of κ-carbide precipitation

Zambrano, O.A.; Valdés, Jairo; Aguilar, Y.; Coronado, J.J.; Rodríguez, S.A.; Logé, Roland E.

doi:10.1016/j.msea.2017.02.060

Cited by 87 publications

(17 citation statements)

References 96 publications

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“…Figure 56. Grain orientation spread (GOS, misorientation) of the sample deformed to a true strain of 0.7 at 900 °C and a strain rate of 0.01 s-1 with initial austenitic grain size of ~100 µm, reproduced from [277] with permission of Elsevier ® Interestingly, they also found a correlation between the new DRXed grains and annealing twins as is shown in Figure 57. Finally, due to the high carbon and aluminum content of the alloys, as well as the conditions imposed, the steel precipitate dynamically κ-carbides as is shown in Figure 58.…”

Section: Thermo-mechanical Treatments (Tmt)mentioning

confidence: 88%

“…In addition, metallurgical factors such as SFE, which will determine the recrystallization mechanisms that operate at high temperatures, have not been properly discussed to date in Fe-Mn-Al-C steels. These concerns have been recently [277] in a high aluminum and high carbon Fe-Mn-Al-C steel. In this work, it was studied the effect of test temperatures between 900 °C and 1150 °C, and the strain rates varying from 0.01 s -1 to 1 s -1 on dynamic recrystallization behavior.…”

Section: Thermo-mechanical Treatments (Tmt)mentioning

confidence: 99%

“…OIM maps of the sample deformed to a true strain of 0.7 at 900 °C and a strain rate of 0.01 s-1 (a) Σ3 boundaries and (b) high angle boundaries ( > 15°) with Σ3 boundaries, reproduced from[277] with permission of Elsevier ®…”

mentioning

confidence: 99%

“…SEM images of the sample after TMT at 1150 °C-0.1 s-1 (a) 5 µm and (b) 500 nm-modulated precipitates in austenite matrix, reproduced from[277] with permission of Elsevier ®…”

mentioning

confidence: 99%

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A general perspective of Fe–Mn–Al–C steels

Zambrano

2018

J Mater Sci

181

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During the last years, the scientific and industrial community have focused on the astonishing properties of Fe-Mn-Al-C steels. These high advanced steels allow high-density reductions about ~18% lighter than conventional steels, high corrosion resistance, high strength (ultimate tensile strength (UTS) ~1 Gpa) and at the same time ductility above 60%.The increase of the tensile or yield strength and the ductility at the same time is almost a special feature of this kind of new steels, which makes them so interesting for many applications such as in the automotive, armor and mining industry. The control of these properties depends on a complex relationship between the chemical composition of the steel, the test temperature, the external loads and the processing parameters of the steel. This review has been conceived to tried to elucidate these complex relations and gather the most important aspects of Fe-Mn-Al-C steels developed so far.

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Section: Thermo-mechanical Treatments (Tmt)mentioning

confidence: 88%

Section: Thermo-mechanical Treatments (Tmt)mentioning

confidence: 99%

mentioning

confidence: 99%

“…SEM images of the sample after TMT at 1150 °C-0.1 s-1 (a) 5 µm and (b) 500 nm-modulated precipitates in austenite matrix, reproduced from[277] with permission of Elsevier ®…”

mentioning

confidence: 99%

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A general perspective of Fe–Mn–Al–C steels

Zambrano

2018

J Mater Sci

181

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“…Chromium is considered as the most economic alloying element that can be used in alloying of Hadfield steel, owing to its affinity in forming different categories of carbides M3C7, M23C6, MC6 [11,12]. Certainly, each category of these carbide can be precipitated at significant temperature with distinguished size [1,[13][14][15]. Thereby, it is crucial to identify the temperature at which the free energy of each category is much negative, allowing its formation.…”

Section: -Introductionmentioning

confidence: 99%

The Effect of Precipitation Hardening on the Properties Hadfield Steel

Mohamed

El-Fawkhry

Elnahas

2020

ERJ. Engineering Research Journal

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The precipitation hardening in chromium containing Hadfield steel is considered as the most traditional mechanism for promoting the technological and mechanical properties of such high alloy steel. Two methodologies of precipitation hardening were suggested to attain the strengthening mechanical and technical properties of this steel. Different precipitates of chromium carbides were stimulated through either pre and post solution hardening treatment. Thereby, the results of the two mechanism were compared in terms of precipitation morophology, compositions, and mechanical properties. It was found that the deteriorative of toughness was significantly observed at the post solution treatment. Fine chromium carbides Cr 7 C 3 , and Cr 23 C 6 were observed throughout the austenite matrix at 650 o C, and 700 o C as the temperature of presolution treatment technique. It was found that the morophology of chromium carbides has the most significant effect on promoting the strain hardening property of Hadfield steel studied. When conducting the age hardening regime followed the solution treatment observed the best toughness of Hadfield steel.

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High‐Temperature Tensile Properties and Deformation Behavior of Three As‐Cast High‐Manganese Steels

Shen

Liu

Hao

et al. 2020

steel research int.

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Herein, the high‐temperature tensile properties and deformation behavior of three as‐cast high‐manganese steels with various carbon contents (0.028, 0.28, and 0.64 wt%) are investigated using a combination of hot tensile tests and isothermal hot compression on a Gleeble‐3500 thermomechanical simulator with different temperatures and strain rates. The results indicate that the carbon content increase makes a greater number of Mn–C dipoles available for a short‐range ordering and increases in the peak stress and the maximum flow stress at a constant test temperature and strain rate. In contrast, the stress decreases with increasing test temperatures. The change in carbon content affects the phase transformation at high temperatures, leading to differences in hot ductility. Steels with a carbon content of 0.028 and 0.28 wt% have similar hot brittle temperature ranges, whereas the ductility of the steel improves with increasing temperatures when the carbon content increases to 0.64 wt%. For the hot compression test, the influence of strain rates in increasing the maximum stress grows with increasing carbon content. The hot deformation activation energies of different steels are confirmed, with which the peak stresses could be predicted by the Z parameter in the hyperbolic sine equation. A good correlation is obtained between model predictions and experimental observations in the peak stress.

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Hot deformation of a Fe-Mn-Al-C steel susceptible of κ-carbide precipitation

Cited by 87 publications

References 96 publications

A general perspective of Fe–Mn–Al–C steels

A general perspective of Fe–Mn–Al–C steels

The Effect of Precipitation Hardening on the Properties Hadfield Steel

High‐Temperature Tensile Properties and Deformation Behavior of Three As‐Cast High‐Manganese Steels

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