The influence of aluminum on microstructure, mechanical properties and wear performance of Fe–14%Mn–1.05%C manganese steel

Anijdan, S.H. Mousavi; Sabzi, Masoud; Najafi, Hamidreza; Jafari, M.; Eivani, A.R.; Park, Nokeun; Jafarian, H.R.

doi:10.1016/j.jmrt.2021.10.054

Cited by 47 publications

(3 citation statements)

References 43 publications

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“…Austenite peaks appear at 2 θ angles of 43.47°, 50.67°, and 74.68°, corresponding to the signals of the {111}, {200}, and {220} planes, respectively. Additionally, regardless of the Mn content, (Fe, Mn) x C complex carbides were detected at a 2 θ angle of 29.55°, [ 27,28 ] corresponding to {111}. As shown in Figure 6b, austenite dominates regardless of the Mn content in the heat‐treated, deposited HMnS.…”

Section: Resultsmentioning

confidence: 97%

Effect of Mn Content on Microstructure and Mechanical Properties of Fe–Mn–Cr–C High‐Manganese Steels Produced Using Laser‐Directed Energy Deposition

Park,

Shin,

Lee

et al. 2023

steel research int.

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This study investigates the microstructure and mechanical properties of high–manganese steel (HMnS) fabricated using laser–directed energy deposition (L–DED) with Fe‐Mn‐4Cr‐0.4C alloys with Mn contents of 13, 18.5, and 24 wt%. Additionally, the effect of annealing heat–treatment on the microstructure and mechanical properties of the deposited HMnS is examined. Regardless of the manganese content, the deposited HMnS exhibits a fine microstructure without any defects (cracks or voids) and a strong fibrous texture along the <001>//building direction of the primary austenite phase. In addition, regardless of the manganese content, the grain size increased during annealing heat–treatment, and the hardness decreased as the annealing temperature increased. The strength tended to decrease as the Mn content increased in the as–built state. In addition, regardless of the Mn content, the yield strength and ultimate tensile strength tended to decrease owing to the effect of annealing heat–treatment. Although the maximum elongation of 18.5 and 24Mn did not change significantly upon heat–treatment, the maximum elongation of 13Mn was greatly reduced by annealing. The electron backscatter diffraction analysis in the as–built state indicates that the deformation behavior of HMnS is characterized by transformation–induced plasticity (TRIP) for 13Mn and both TRIP and twinning–induced plasticity for 18.5 and 24Mn.This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 97%

Effect of Mn Content on Microstructure and Mechanical Properties of Fe–Mn–Cr–C High‐Manganese Steels Produced Using Laser‐Directed Energy Deposition

Park,

Shin,

Lee

et al. 2023

steel research int.

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“…Thus, it may affect the mechanical characteristics of austenite that have undergone a reverse transformation at the same time, increasing austenite's stability [16]. Moreover, because the addition of Al decreases the density of the steel, it is a very significant development trend in medium manganese steel [7,[16][17][18][19][20]. According to research, adjusting the temperature and time of the heat treatment process can control the evolution of the microstructure of manganese steel and so enhance its mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Effects of different annealing time on microstructure and mechanical properties of lightweight Al-containing medium-Mn steel

Jing

Feng

et al. 2023

Ironmaking & Steelmaking

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The relationship between the microstructure and mechanical properties of lightweight Al-containing medium-Mn steel with different annealing times was investigated. The results show that the microstructures of the tested steels treated by the I-Q&P process with varying times of annealing are all composed of martensite, α-ferrite, δ-ferrite, and retained austenite. With extended annealing times, the tested steel's martensite/ferrite microstructure exhibits a variety of size and morphological changes. Simultaneously, retained austenite nucleates and grows at high-angle grain boundaries in ferrite/martensite, exhibiting multi-sized, multi-morphology, and diffuse distribution. With appropriate short annealing times, we achieved improved overall mechanical properties for lightweight Al-containing medium manganese steels than with long annealing times. It allows the tested steel to reach a tensile strength of 1000 MPa, an elongation of 48%, and the product of strength and elongation of 48 GPa•%. At this point, the tested steel shows the best overall mechanical properties.

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“…There are two ways to overcome these difficulties. One is to directly analyze the two-dimensional images to study the changes in the corresponding microstructure when the properties of the test samples change [ 27 , 28 , 29 , 30 , 31 , 32 ]. The other is to use CT images to reconstruct the three-dimensional model of the test sample and then study the relationship between the reconstructed model’s structural characteristics and the sample’s properties [ 33 , 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

Measuring the Effect of Pack Shape on Gravel’s Pore Characteristics and Permeability Using X-ray Diffraction Computed Tomography

2022

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Particle shape is one of the critical parameter factors that affect gravel’s pore structure and permeability. However, few studies have considered its effects on engineering applications due to the difficulty of conducting laboratory tests. To overcome these difficulties, new methods of estimating the gravel pack shape that involve manual work and measuring the surface area of particles and pores based on support vector machine segmentation and the reconstruction of X-ray diffraction computed tomography (CT) images were proposed. Under the same conditions, CT tests were carried out on gravel packs and two other regular-shaped particle packs to investigate the influence of particle shape on the fractal dimension of gravel’s pore–particle interface and the specific surface area of the pore network. Additionally, permeability tests were performed to study the effect of particle shape on gravel’s hydraulic conductivity. The results showed that a gravel pack with a larger aspect ratio and a smaller roundness had a larger specific pore network surface area and a more complex pore structure, leading to lower permeability. This kind of gravel had a more significant length, quantity, and tortuosity of the seepage path when seepage occurred in a two-dimensional seepage field simulation. Therefore, we suggest that the filter materials of hydraulic projects should preferably use blasting gravel with a larger aspect ratio and smaller roundness to achieve better anti-seepage properties. In addition, projects can increase pores’ specific surface area using our method as a control factor in filter construction.

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The influence of aluminum on microstructure, mechanical properties and wear performance of Fe–14%Mn–1.05%C manganese steel

Cited by 47 publications

References 43 publications

Effect of Mn Content on Microstructure and Mechanical Properties of Fe–Mn–Cr–C High‐Manganese Steels Produced Using Laser‐Directed Energy Deposition

Effect of Mn Content on Microstructure and Mechanical Properties of Fe–Mn–Cr–C High‐Manganese Steels Produced Using Laser‐Directed Energy Deposition

Effects of different annealing time on microstructure and mechanical properties of lightweight Al-containing medium-Mn steel

Measuring the Effect of Pack Shape on Gravel’s Pore Characteristics and Permeability Using X-ray Diffraction Computed Tomography

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