Low temperature mechanical properties of Fe28Mn5Al1C alloy

Luo, Kaishuang; Kao, P.W.; Gan, Dershin

doi:10.1016/0921-5093(92)90195-7

Cited by 38 publications

(4 citation statements)

References 20 publications

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“…Figure 9 plots the yield stress (YS), ultimate tensile strength (UTS), tensile elongation (TE), and Charpy impact energy for several types of Fe-Mn-Al-C steels tested at 77K. 51,52,[63][64][65] Stress values correspond to true stress values. For comparison, the plots include the mechanical properties of conventional stainless steels.…”

Section: Cryogenic Mechanical Propertiesmentioning

confidence: 99%

Low Density Fe–Mn–Al–C Steels: Phase Structures, Mechanisms and Properties

Gutiérrez-Urrutia

2021

ISIJ Int.

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This review introduces the structural phases, microstructural characteristics, and the most relevant room and cryogenic properties of low density Fe-Mn-Al-C steels. The combination of outstanding physical and mechanical properties while offering a weight reduction of up to 18% make low density Fe-Mn-Al-C steels attractive structural materials as lightweight crash-resistant car body structures and structural components in the cryogenic industry. In this review, the latest alloy design strategies are introduced. In particular, the novel aspects of the phase structures and their deformation behavior, in particular, those related to L'1 2 (Fe, Mn) 3 AlC carbides (κ-carbides) and B2-type Ni/Cu-rich precipitates, are critically summarized. Future scientific and technical challenges are provided to establish these steels as structural materials for industrial applications.

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Section: Cryogenic Mechanical Propertiesmentioning

confidence: 99%

Low Density Fe–Mn–Al–C Steels: Phase Structures, Mechanisms and Properties

Gutiérrez-Urrutia

2021

ISIJ Int.

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“…For structural purposes, a good combination of mechanical strength and fracture toughness is desirable. In order to obtain both high ductility and high toughness, low-density steel has to be solution treated to suppress κ-carbides, which takes place in the cooling or aging process [ 2 , 3 , 9 , 10 ]. At the same time, the solution treatment induces the significant grain growth and therefore decreases both yield and tensile strength according to the classical Hall Petch law [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

High Temperature Deformation Behavior and Microstructure Evolution of Low-Density Steel Fe30Mn11Al1C Micro-Alloyed with Nb and V

et al. 2021

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The thermal processing parameters is very important to the hot rolling and forging process for producing grain refinement in lightweight high-manganese and aluminum steels. In this work, the high temperature deformation behaviors of a low-density steel of Fe30Mn11Al1C alloyed with 0.1Nb and 0.1V were studied by isothermal hot compression tests at temperatures of 850–1150 °C and strain rates between 0.01 s−1 and 10 s−1. It was found that the flow stress constitutive model could be effectively established by the Arrhenius based hyperbolic sine equation with an activation energy of about 389.1 kJ/mol. The thermal processing maps were developed based on the dynamic material model at different strains. It’s shown that the safe region for high temperatures in a very broad range of both deformation temperature and deformation strain and only a small unstable high deformation region, located at low temperatures lower than 950 °C. The deformation microstructures were found to be fully recrystallized microstructure in the safe deformation region and the grain size decreases along with decreasing temperature and increasing strain rate. Whereas the deformation microstructures is composed by grain refinement-recrystallized grains and a small fraction of non-recrystallized microstructure in the unstable deformation region, indicating that the deformation behaviors controlled by continuous dynamic recrystallization. The Hall Petch relationship between microhardness and the grain size of the high temperature deformed materials indicates that high strength low-density steel could be developed by a relative low temperature deformation and high strain rate.

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“…These steels offer a strong potential for employment in lightweight applications, rendering them particularly appealing for utilization in structural applications and the automotive industry [148]. Moreover, it is noteworthy that these steels show other interesting properties such as remarkable strength and toughness, even when subjected to cryogenic temperatures [147,149,150,151], good fatigue and oxidation resistance at room and elevated temperatures [147,150,152,153,154], as well as high energy absorption [148,149,147]. These properties are of significant value to various industries, including oil-and-gas, aerospace, defence, or chemical.…”

Section: Twip Steelsmentioning

confidence: 99%

“…These steels have higher values of impact toughness in comparison to AHSS, while demonstrating values comparable to those of austenitic SS. Specifically, the austenitic Fe-Mn-Al-C low density steel shows cases of Charpy V-notch toughness at room temperature of 200 J/cm 2 [151,150]. The impact toughness of High Mn low density steels is affected by the formation of κ-carbides, which can induce brittleness and a reduction of ductility and subsequent loss of impact toughness [184,150].…”

Section: Twip Steelsmentioning

confidence: 99%

Design of High Mn Fe-Mn-Al-C Low Density Steels for Additive Manufacturing

Sánchez Poncela

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Low temperature mechanical properties of Fe28Mn5Al1C alloy

Cited by 38 publications

References 20 publications

Low Density Fe–Mn–Al–C Steels: Phase Structures, Mechanisms and Properties

Low Density Fe–Mn–Al–C Steels: Phase Structures, Mechanisms and Properties

High Temperature Deformation Behavior and Microstructure Evolution of Low-Density Steel Fe30Mn11Al1C Micro-Alloyed with Nb and V

Design of High Mn Fe-Mn-Al-C Low Density Steels for Additive Manufacturing

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